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Contains CRANIAL CAVITY & VERTEBRAL CANAL |
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Contains: THORACTIC CAVITY & ABDOMINOPELVIC CAVITY |
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Above the diaphragm, containing lungs, heart, esophagus, trachea. |
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Below the diaphragm, containing liver, stomach, intestines. |
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Separates thoractic/abdominopelvic cavities. Respiratory function. |
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Lining of abdominal organs. |
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SUPERIOR: top of body
INFERIOR: bottom of body
*Divided by transverse plane) |
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DISTAL PROXIMAL DISTAL
Proximal: closer to center Distal: farther from center |
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ANTERIOR (ventral): front of body POSTERIOR (dorsal): back of body *think dorsal fin*
*Divided by frontal plane* |
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Divides Left and Right portions of body equally. |
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Divides anterior and posterior regions, vertically. |
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Divides superior and inferior regions, horizontally. |
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Medial (center of body) ---> Lateral (outside of body) |
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Standing facing forward, palms forward. |
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Protective covering: skin & accessory organs (hair, nails). |
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Provide support and protection. Bones and ligaments. |
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Allows for movement. Skeletal muscles (voluntary movement) and tendons (connect muscles to bones). |
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Detects and interprets sensory information, stimulates muscles and glands. Brain, spinal cord, nerves. |
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Hormone secretion. Glands, reproductive organs. |
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Transports gasses, nutrients, and wastes. Heart, arteries, veins. |
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Immune cell production, returns tissue fluids to blood. |
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Gas exchange between air and blood. |
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Food breakdown and absorption. |
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Removal of liquid and wastes from blood. |
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Plasma Membrane:
-phospholipid bilayer with glycoproteins and glycolipids.
-cellular boundary that controls transport into and out of cell
-cellular exchange can be passive (without energy) or active (requires ATP). |
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Cell Nucleus: large central control center of cell
-Nuclear envelope: double membrane boundary, passage between nucleus and cytoplasm
-Nucleolus: non-membraneous body containing RNA & proteins
-Chromatin & DNA: strands of DNA and protein |
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Rough Endoplasmic Reticulum |
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Extensive membrane network with attaches ribosomes. Responsible for protein synthesis and cellular transport. |
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Smooth Endoplasmic Reticulum |
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Extensive membrane network lacking ribosomes. Lipid synthesis and cellular transport. |
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Powerhouse of cell, ATP synthesis. Possess a double membrane with folded membrane within. |
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Series of flattened sacs often near nucleus. Package glycoproteins for transport. |
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Sacs containing digestive enzymes responsible for breaking down and ridding of cellular debris. |
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Cytoskeleton MICROTUBULES |
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Hollow protein cylinders in cilia, flagella, centrioles. Support and motility within cell. |
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Cytoskeleton MICROFIBRILS |
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Various protein fibers that provide internal cellular support. |
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Diffusion: the fluid or gas movement alone a concentration gradient (from high to low).
Ex: perfume or tea. |
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Osmosis: the diffusion of water molecules across the plasma membrane.
-Hypertonic: solution outside of cell with high concentration causes water to rush out of cell
-Hypotonic: solution outside with low concentration causes water to rush in
-Isotonic: equilibrium of concentrations |
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Consists of alternating times of INTERPHASE (cell growth) and MITOSIS (cell division). |
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Preparation stage for mitosis. G1 phase: 1st gap, cellular growth and synthesis of material for S phase: synthesis, replication of DNA and centrioles G2 phase: 2nd gap, cell completes growth (matures), production of enzymes |
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Cellular division process. Consists of Prophase, Metaphase, Anaphase, Telophase, & Cytokinesis. Results in two identical daughter cells. |
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Prophase: the first stage of mitosis
-chromosomes condense and become visible
-nuclear envelope begins to disintigrate
-spindle apparatus formation
-centrioles migrate to opposite poles of cell |
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Metaphase:
-chromosomes aline along cellular equator
-spindle fibers begin to attach to kinetochores
-aster fibers extend from centrosome to plasma membrane |
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Anaphase:
-spindle fibers pull sister chromatids to opposite poles of cell
-each pole now has identical set of genes |
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Telophase:
-nuclear envelopes begin to appear around daughter nuclei
-chromosomes condense
-spindle disappears
-division of cytoplasm into two identical daughter cells |
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Cytokenesis: the cleavage furrow formation when two daughter cells split upon telophase. |
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Provide coverings and linings to body parts, also including some glands. |
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Epithelial Tissue Types
-all attached to basement membrane |
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Simple Squamous Cells:
-single layer of flattened cells
-function in filtration, diffusion, osmosis, secretion
-located in lung air pockets (alveoli), walls of capillaries, linings of blood vessels. |
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Simple Cuboidal Cells:
-single layers of cube shaped cells
-involved in secretion and absorption
-located on ovary surfaces, linings of kidney tubes, gland duct linings. |
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Simple Columnar Cells:
-single layers of elongated, narrow cells, some may be cilliated
-functions in protection, absorption, secretion
-located in uterus lining, stomach, gallbladder, intestinal linings
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Pseudostratified, Ciliated Columnar Epithelium:
-single layer (eye trickery), elongated cells, some cells do not reach free surface
-protection, secretion, movement of substances
-located in linings of respiratory passages |
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Stratified Squamous:
-multifle layers of flattened cells
-keratinized: many layers of keratin containing cells, upper layer dead. Found in epidermis.
-nonkeratinized: many layers, flattened, alive. Found in oral linings, vagina, anal canal. |
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Goblet Cell: glandular cells that produce mucus. Seen in many single layer epithelial linings. |
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Binds, insulates, protects, and supports internal organs. Blood is a specialized liquid connective tissue. Large amount of Extracellular Matrix (ECM) produced by connective tissue. |
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Areolar Tissue:
-cells in abundant fluid-gel matrix
-loose arrangement of collagen and elastic fibers
Function: loosely binds organs, holds tissue fluids
Locations: around body organs, binds skin to deeper organs |
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Areolar Tissue:
-cells in abundant fluid-gel matrix
-loose arrangement of collagen and elastic fibers
Function: loosely binds organs, holds tissue fluids
Locations: around body organs, binds skin to deeper organs |
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Adipose Tissue: Fat Tissue
-closely packed, clear cells
Function: protects, insulates, storage
Locations: subcutaneous level, yellow marrow, around kidneys and heart, breasts. |
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Reticular Tissue:
-reticular fibers, cells in fluid-gel matrix
Function: supportive framework of organs
Locations: spleen, thymus, lymph nodes, red bone marrow. |
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Dense Regular Tissue:
-parallel cells, wavy collagen fibers, fibroblasts
Function: tightly binds body parts
Locations: tendons, ligaments. |
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Elastic Cartilage:
-cells in firm solid-gel matrix, weblike elastin fibers, lacunas
Function: support, protection, framework, calcium storage
Locations: outer ear, epiglottis |
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Hyaline Cartilage:
-fine network of collagen fibers, appears glossy, lacunas
Function: support, protection, provides framework.
Locations: nasal septum, ends of long bones. |
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Fibrocartilage:
-technocolor, abundant collagen fibers
Function: support, protection, shock absorption
Locations: between vertebrae, between pubic bones, knee pads. |
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Compact Bone Tissue:
-cells in solid matrix, collagen fibers, central canals, osteons
Function: support, protection, framework, calcium storage
Location: bone shafts, beneath periosteum. |
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Consists of skin, hair, sweat glands, oil glands, skin receptors. |
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Protection, water loss/retention control, temperature regulation, waste excretion. |
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Dermis and Epidermis
-Epidermis: outer layer/dead layer of skin, made of keratinized stratified squamous epithelium
-Dermis: superficial layers of skin
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Epidermis: superficial layer of skin
Epidermal Layers:
in order of deepest to most superficial
-stratum basal
-stratum spinosum
-stratum granulosum
-stratum lucidum
-stratum corneum |
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Dermis: inner layers
-sweat glands, oil glands (sebacious), hair follicles |
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Major support and protection system of the body. |
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Axial Skeleton: consists of skull, vertebral column, ribcage. |
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Apendicular Skeleton: all of the bones not belonging to axial skeleton. |
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Bone Regions:
-epiphysis: typically rounded ends of long bone
-diaphysis: shaft/length of bone
-epiphyseal line: divides epiphysis and diaphysis after grotwh is complete
-epiphyseal plate: groth plate (during growth) made of hyaline cartilage |
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Compact v Spongy Bone
-Compact bone: hard outer layer of bone
-Spongy bone: found inside epiphysis
-Trabeculae: middle of spongey bone, structural lattice of plates for growth |
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Found in spongy bone in epiphysis and flat bones. Produces red blood cells. |
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Occupies medullary capillary and stores adipose tissue is diaphysis region. |
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Periosteum: outer lining layer of compact bone tissue
Endosteum: inner lining of medullary canal |
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Hollow chamber within inner diaphysis. |
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Located on ends of epiphysis. Connects bones and aids in joint action. |
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Haversian System: cylinder shaped unit |
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Haversian Canal: contains blood vessels and nerves |
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Concentric ring of matrix around central canal. |
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Human skeleton: 206 bones Skull: 22 Vertebral Column: 33 Cranium: 8 Facial bones: 14 Ribcage: 12 pairs = 24 plus sternum |
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Cranial Bones
-Frontal: face palm
-Parietals (2): driving me crazy
-Temporals (2): headache
-Occipital: base
-Spenoid: butterfly, underneath
-Ethmoid: back of nose, ridge |
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Facial Bones:
-Mandible: jaw
-Maxillae
-Palatines: palate, top of mouth
-Zygomatics: cheek bones, upper teeth
-Lacrimals: tear ducts
-Nasals: top of nose
-Vomer: inner nose
-Inferior Nasal Conchae: up inside nose, top |
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Mastoid Process of Temporal Bone: attachment site for muscles |
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Zygomatic Process of Temporal Bone: projection of temporal bone, forms zygomatic arch |
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Styloid Process: poined peice of bone extending down below ear (vampire teeth). |
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Occipital Condyles: connect skull to first vertebrae. 2 Protuberances. |
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Foramen Magnum: hole where brain stem and spinal cord meet on base of head. |
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Sella Turcica: saddle shaped depression for pituitary gland (turkish saddle). |
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Optic Canals: holes behind eyes where optic nerve travels. |
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Cribriform Plate: olfactory foramina (perforations) in the nasal cavity. |
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Condylar Process of Mandible: end points of jaw bone in back. |
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Coronoid Process of Mandible: frontal attachment site for chewing muscles. |
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Mandibular Foramen: admits blood vessels and nerves for teeth. Two small holes in jaw. |
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Skull Sutures:
-Sagittal: runs from top to bottom along center
-Coronal: runs horizontally across top of forehead
-Squamous: runs loop around ears; separates frontal and coronal regions
-Lambdoid: runs horizontally along base of skull (like lambda); separates occipital and parietal regions |
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Sinuses: 4 air filled spaces located within the bones of the skull and face. Lighten up the facial structure and air in auditory/hearing process. |
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Hyoid bone: located (floating) below the chin. Controls th tongue. |
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Consists of 33 vertebrae, main axial support system |
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canal formed by neural arches and neural spines of vertebrae. The hole in the middle of a vertebra. |
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located between vertebrae, act as shock absorbers. |
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Cervial Vertebrae:
-First 7 vertebrae in spinal column
-3 holed
-Spinous process directly opposite a body |
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Thoracis Vertebrae:
-T1-T12 12 vertebrae following cervical vert.
-long spinous process, looks like giraffe
-multifaceted
-one hole |
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Lumar Vertebrae:
-L1-L5 5 vertebrae below thoracic vert.
-large support base/body
-looks like a moose or triceratops |
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Curves of the spine:
-Cervical C1-C7
-Thoracic T1-T12
-Lumbar L1-L5
-Sacral (5 vertebrae)
-Coccyx (tailbone, fused) |
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Atlas: first vertebra (C1)
-looks like yoda
-facets and 3 holes
-allows you to say yes
Axis: second vertebra (C2)
-frontal knob-like protusion called dens
-allows you to say no |
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Rib Cage (Thoracic Cage)
-12 pairs of ribs, sternum, and costal cartilage
-Costal Cartilage: inner cartilage portions of ribs for slight give |
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Sections of rib cage:
-First 7 ribs are TRUE RIBS
-Next 3 are FALSE RIBS
-Last two, positioned in the back, are floating ribs |
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True Rib:
-Head: expanded end near thoracic vertebrae, where ribs meet spinal cord in back
-Neck: narrow region between head and tubercle, rounded
-Tubercle: projection near thoracic vertebrae, nob on posterior surface "rough patch" |
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Sternum:
-Manibrium: top triagular portion
-Body: largest middle portion
-Xiphoid process: very bottom portion, remains cartilage untill adulthood |
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Consists of girdle and limb skeleton |
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Pectoral Girdle: supports the humerous, consists of scapula and clavicle |
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Scapula:
-Large triangular plate behind shoulder, flat
-Acromian: lateral end of sping
-Coracoid process: beaklike projection
-Glenoid fossa: shallow socket that articulates with head of humerous |
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Clavicle: thin, s shaped bone, collar bone
-Sternal/Medial End: articulates with manibrium of the sternum
-Acromial/Lateral End: articulates with the acromion of of the scapula |
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Consists of the humerus, radius, and ulna |
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Humerous: upper arm bone
-Head: smooth and round
-Bicipital Groove: located between cipitals
-Trochlea: groove/notch whenere ulna hooks on
-Oleceron Fossa: depression on back
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Radius: lateral bone of forearm, perfect circle on end
Ulna: medial bone of forearm, longer than arius, U shaped girdle |
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Radius:
-head: allow elbow rotation
-radial tuberosity: projection where radius meets ulna
-styloid process: outside of wrist where radius meets hand, projection |
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Ulna:
-oleceron process: forms outer bump of elbow
-trochlear notch: U shaped notch where ulna hooks onto humerus
-radial notch: narrow oblong depression on lateral side where ulna meets radius |
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Pelvic Girdle:
-Ilium, ischium, pubis make up Os Coxa or the hip bone
-Pubic symphysis: where the two pubic bones articulate with eachother through a cartilage disk
-Sacro-illiac joint: where ilium and sacrum join (hip joint)
-Sacrum & Coccyx make up pelvis which supports visceral organs |
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Obturator Foramen: largest hole in the body, houses blood fessels and nerves that feed into back of legs
Acetabulum: where femur hooks into hip "ass" |
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Consists of femur (thigh bone, longest and thickest in body), the tibia and fibula (leg bones), tarsals (ankle bones, 7), metatarsals (foot bones, 5), and phalanges (digits, 14) |
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Femur: the thigh bone
-head: found
-neck: long, between head and shaft
-greater ^, lesser v trochanter
-lateral (out), medial (in) epicondyles (above)
-patella: floating knee, covers joint |
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Tibia: Medial
Fibula: Lateral |
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Tibia: shinbone
-lateral (out) and medial (in) epicondyles
-Medial Malleolus: round ankle bones
-Has a T at top
Fibula:
-fiddle like: long and skinny
-Lateral Malleolus: sticky end, outside of ankle bone |
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Tarsals: ankle bones, 7
-Calcaneus: heel bone
-Talus
-Tarsal: before toes
-Metatarsal: mid toe
-Phalandes: ends of toes |
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Fetal skull:
-Fontanels: soft spots that allow for compression at birth and growth afterward
-Sutures not yet closed
-Face is small because of undersized mouth bones and no teeth |
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Also known as arthroses: Junctions in the skeleton that in most cases allow for some degree of movement. |
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Also knowns as synarthroses, form IMMOVABLE joints. Ex/ Sutures of the skull |
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Also known as amphiarthroses, form SLIGHTLY MOVEABLE joints. Ex/ intervertebral disks |
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Also known as diathroses, are FREELY MOVEABLE joints. Ex/ elbows and shoulders |
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Synovial Joint: freely moveable joints
-Synovial fluid: most viscous fluid in the body, lubricant that fills synovial cavity
-Synovial membrane: secrets synovial fluid
-Articular Cartilage: hyaline cartilage, at the ends of bones, covers surface of ends of bones for protection
-Fibrous capsule: composed of dense connective tissue, encapsulates entire joint |
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Shoulder joint: ball and socket joint which is humeroscapular
-Connecting humurus and scapula
-Diathrosis movement: multiaxial |
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Elbow Joint: hinge joint
-Diathrosis: uniaxial movement, up and down,flexion and extension
-Attaching trochular of humerus and trochlear notch of ulna, connected at head of radius
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Knee Joint:
-Patella: floating knee cap
-Medial and Lateral meniscus: inside and outside oreo filling
-Anterior cruciate ligament: very middle ligament
-Posterior cruciate ligament: behind anterior
-Medial Collateral Ligament: Tibial side
-Lateral Collateral Ligament: Fibular side
-Patella ligament: runs down front over entire thing |
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Why is the knee so vulnerable? |
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Definition
So much compression on such a poorly designed joint. Lateral forces cause easy tearing. |
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