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Anatomy Lab 1
lab terms for first exam
197
Anatomy
Undergraduate 2
08/31/2012

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Term
frontal bone
Definition
forms forehead, anterior roof, and superior walls
Term
left and right parietal bones
Definition
form the superior sides of the cranium
Term
coronal suture
Definition
connects the frontal and parietal bones; a fibrous joint
Term
sagittal suture
Definition
connects the two parietal bones
Term
lamboid suture
Definition
connects the parietal bones with occipital bone
Term
occipital bone
Definition
located posteriorily and inferiorily
Term
left and right temporal bones
Definition
left and right bones which joint parietal bones via a squamosal suture
Term
ethmoid bone
Definition
contribute to formation of cranium, contains perpendicular plane; inside nasal cavity
Term
sphenoid bone
Definition
contribute to formation of cranium, resembles a butterfly
Term
maxillae
Definition
forms the upper jaw and most of the hard palate
Term
palatine bones
Definition
forms the posterior third of the hard palate
Term
zygomatic bones
Definition
conected to the lateral sides of the maxillae and form the prominence of the cheek
Term
nasal bones
Definition
forms the bridge of the nose; small
Term
lacrimal bones
Definition
forms a small portion of the medial wall of the orbits; hole where tear ducts are
Term
vomer
Definition
forms the inferior part of the nasal septum that divides the nasal cavity into L and R halves (underneath perpendicular plate)
Term
inferior nasal conchae
Definition
2 small curled bones on lateral sides of nasal cavity
Term
mandible
Definition
forms the lower jaw
Term
hyoid bone
Definition
not part of the skull, but is a single, U-shaped bone posterior and inferior to the mandible

attaches to bones of skull via muscles and ligaments
Term
frontal sinus
Definition
within the frontal bone; connects to nasal cavity via small duct (only seen on half0head an bisected)
Term
foramen magnum
Definition
a large hole in the occipital bone through which the spinal cord enters the skull
Term
occipital condyles
Definition
located on the L and R sides of the foramen magnum and articulate with the first cervical vertebra
Term
external occipital protuberance
Definition
a usually prominent, pointed projection on the posterior surface of the bone
Term
zygomatic process
Definition
a long, slender, anteriorly-projecting process on each temporal bone, which articulates with the zygomatic bone
Term
mandibular fossa
Definition
a rounded depression where the mandible articulates, inferior to the proximal end of the zygomatic process (basically where glue is on plastic skull)
Term
external acoustic (auditory) meatus (canal)
Definition
posterior to mandibular fossa
Term
mastoid process
Definition
a rounded bump-like elevation posterior to external acoustic meatus
Term
styloid process
Definition
a thin, pointed projection of bone, anterior and medial to mastoid process
Term
petrous part of temporal bone
Definition
a dense, bony ridge projecting up into the cranial cavity; contains auditory ossicles
Term
internal acoustic (auditory) meatus (canal)
Definition
seen on posterior side of petrous part
Term
jugular foramen
Definition
lies in the suture between temporal and occipital bones
Term
carotid canal
Definition
anterior to jugular formane, passes medially and anteriorly as it enters the skull
Term
cribiform plate
Definition
horizontal plate of bone contained in ethmoid bone (triangular area); numerous, tiny holes for passage of olfactory nerve branches
Term
perpendicular plate
Definition
forms the superior part of the nasal septum and articulates with the vomer bone (best seen within the nasal cavity)
Term
superior nasal conchae (2)
Definition
lateral part of ethmoid bone
Term
middle nasal conchae (2)
Definition
lateral part of ethmoid bone
Term
sella turcica
Definition
a rounded depression in the sphenoid bone, in which the pituitary gland rests
Term
optic canals (optic foramina)(2)
Definition
run from within the cranial cavity to the orbit, and transmit the optic nerve
Term
superior orbital fissures (2)
Definition
lateral to the optic canals
Term
pterygoid process (2)
Definition
seen on inferior side of skull; each have 2 vertical plates
Term
sphenoidal sinus
Definition
within body of sphenoid bone, can have more than one part
Term
infraorbital foramen
Definition
on maxilla, an opening inferior to the orbit, where nerve and vessels are transmitted through
Term
palatine process
Definition
the part of the maxilla that articulates with the horizontal plate of the palatine bone (suture break)
Term
alveolar process
Definition
the ridge of bone on the maxilla that contains the sockets (alveoli) for the upper teeth
Term
(vertebra) body (centrum)
Definition
connects with a thin arch of bone (vertebral arch); contained on each vertebra
Term
vertebral foramen
Definition
the space in between the body and vertebral arch
Term
transverse processes
Definition
located on either side of the vertebral arch
Term
spinous process
Definition
located on the posterior part of the arch
Term
superior articular processes
Definition
arising from the arch, has a surface (facet) for articulation with the adjacent vertebra
Term
inferior articular processes
Definition
arising from the arch, has a surface for articulation with the adjacent vertebrae but on bottom of vertebrae
Term
cervical vertebrae (7)
Definition
have holes on side (transverse foramen); smaller and more rectangular
Term
transverse foramen
Definition
holes on each side of cervical vertebra
Term
atlas
Definition
the first cervical vertebra (lacks vertebral body)
Term
axis
Definition
the second cervical vertebra with an extension of its vertebral body (dens)
Term
dens (odontoid process)
Definition
an extension of the vertebral body on the axis
Term
thoracic vertebra (12)
Definition
vertebra that are heart-shaped, articulate with the ribs

unique features = costal facets
Term
costal facets
Definition
small, smooth areas on a thoracic vertebrae's body and on its transverse processes where the body articulates with the ribs
Term
lumbar vertebra (5)
Definition
large bodies and broad spinous processes
Term
sacral region
Definition
the very bottom of the spinal cord, large
Term
sacrum
Definition
the single bone formed by the fusion of 5 separate vertebrae on the bottom of the spinal cord
Term
coccygeal region
Definition
very, very bottom of the spinal cord, small
Term
coccyx
Definition
the single bone formed by the fusion of 4 small vertebrae
Term
ribs
Definition
12 pairs of bones (elongated, curved, flattened)
Term
head
Definition
rounded part of rib where rib articulates with 1 or 2 vertebral bodies
Term
tubercle
Definition
only on ribs 1-10; for articulation with transverse process
Term
shaft (body) of rib
Definition
the main long portion of the rib
Term
sternum
Definition
flat bone in anterior midline of thoracic wall
Term
manubrium
Definition
widest and most superior portion of sternum ("handle" of sword)
Term
body of sternum
Definition
longest part and forms the bulk of the sternum ("blade" of sword)
Term
xiphoid process
Definition
small, inferiorily pointed projection of sternum (very "tip" of sword)
Term
costal noches
Definition
on sides of sternum; articulation for costal cartilages
Term
costal cartilages
Definition
separate cartilaginous extensions where ribs connect to sternum
Term
clavicle
Definition
the S-shaped bone commonly referred to as the colar bone
Term
sternal end
Definition
articulates with manubrium, rounded (circular) portion of clavicle
Term
acromial end
Definition
articulates with acromion, flattened end of clavicle
Term
scapula (shoulder blade)
Definition
broad, flat, triangular bone
Term
medial (vertebral) border
Definition
edge of scapula closest to the vertebrae
Term
lateral (axillary) border
Definition
portion of scapula closest to the axilla (armpit)
Term
spine of scapula
Definition
a projection on scapula which broadens laterally
Term
acromion (process)
Definition
at end of spine of scapula, forms bony tip of shoulder
Term
coracoid process
Definition
smaller, more anterior knob-like projection of scapula
Term
infraspinous fossa
Definition
broad, extensive surface inferior to the spine of scapula
Term
supraspinous fossa
Definition
the depression superior to the spine of the scapula
Term
subscapular fossa
Definition
broad, relatively smooth, anterior surface of scapula
Term
glenoid cavity
Definition
an oval depression where the humerus head articulates on the scapula
Term
humerus
Definition
longest and largest upper limb bone
Term
head of humerus
Definition
the rounded proximal portion of the humerus
Term
greater tubercle and lesser tubercle
Definition
two projections lateral to the head of the humerus
Term
intertubercular (bicipital) sulcus (groove)
Definition
groove in between tubercles of humerus
Term
deltoid tuberosity
Definition
a roughening where the deltiod muscle attaches, on the lateral side of the shaft of the humerus
Term
lateral epicondyle
Definition
opposite side of head on distal portion of humerus, a projection
Term
medial epicondyle
Definition
a projection on distal portion of humerus, same side as head (MEDIAL)
Term
capitulum
Definition
rounded condyle on humerus
Term
trochlea
Definition
medial-placed concave condyle on humerus
Term
olecranon fossa
Definition
a depression on the posterior distal surface of the shaft of humerus
Term
ulna
Definition
the longer, medially placed bone of the forearm with 2 proximally-located projections
Term
olecranon process of ulna
Definition
a prominent projection on the posterosuperior aspect of the trochlear notch of ulna
Term
trochlear notch (semilunar notch)
Definition
a depression between the olecranon and coronoid processes of ulna
Term
radial notch of ulna
Definition
depression where radius articulates on ulna, lateral and inferior to trochlear notch
Term
styloid process of ulna
Definition
a pointed projection on the distal end of the ulna
Term
radius
Definition
a lateral bone with a proximally-located and rounded head
Term
head of radius
Definition
articulates with the capitulum and radial notch of ulna; on the radius
Term
radial tuberosity
Definition
where biceps brachii muscle attaches (on upper shaft of radius)
Term
styloid process of radius
Definition
pointed projection on distal end of radius
Term
carpal bones
Definition
small, short bones that form the wrist
Term
metacarpals
Definition
bones in the palm of the hand and base of thumb
Term
phalanges
Definition
bones of the fingers
Term
cytoplasm
Definition
everything between the plasma membrane and the nuclear envelope
Term
plasma membrane
Definition
the cell membrane
Term
nucleus
Definition
the nuclear envelope and its contents
Term
nucleolus
Definition
a spherical dark-staining body within the nucelus
Term
mitochondria
Definition
usuall ovoid with a double membrane. the outer membrane completely surrounds this organelle and the inner membrane has internal folds (cristae) extending from its walls
Term
rough endoplasmic reticulum
Definition
an extensive intracellular membrane network having small dense bodies, ribosomes, on the surface
Term
golgi apparatus
Definition
consists of short, smooth membranous sacs (cisternae) "stacked" upon one another, and small vesicles
Term
centrioles
Definition
occurring in pairs, each is made up of nine triplets of microtubules
Term
ribosomes
Definition
small particules found in clusters within cytoplasm or attached to the ER
Term
cilia
Definition
motile eyelash-like processes which project out from the plasma membrane
Term
microvilli
Definition
much smaller, non-motile, finger-like processes, uniform in size and shape and evenly distributed over the cell's apical surface
Term
prophase
Definition
look for the chromosomes appearing as threads within the nucleus
Term
metaphase
Definition
you should be able to see the chromosomes lined up in the center of the cell; the nuclear envelope has disassembled
Term
anaphase
Definition
the chromosomes have been pulled apart; they appear as strands moving toward the opposite poles of the cell
Term
telophase
Definition
the chromosomes have reached and are clumped together at the poles; the cell itself appears to be pulled apart
Term
simple squamous epithelium
Definition
kidney; flat cells, dark and flattened nucleus
Term
simple cuboidal epithelium
Definition
kidney; cells as high as they are wide
Term
(nonciliated) simple columnar epithelium
Definition
small intestine; inner cavity where each cell is like a tall column with an elongated nucelus near its base
Term
pseudostratified (ciliated) columnar epithelium
Definition
trachea; appears to have more than 1 layer, but all cells touch basement membrane and may not touch apical surface; cilia on apical surface
Term
(keratinized) stratified squamous epithelium
Definition
skin; cells near basement membrane are darker and more rounded than apical surface which are lighter, flattened, and indistinguishable
Term
transitional epithelium
Definition
ureter; no defined shape and bulgy / binucleated nucleus
Term
cilia
Definition
on trachea of pseudostratified columnar epithelium; apical surface hair-like projections
Term
goblet cells
Definition
unicellular glands that secrete mucus directly onto the apical surface; appear clear
Term
areolar connective tissue
Definition
loose connective tissue; loose arrangement of fibers
Term
adipose connective tissue
Definition
a loose connective tissue that looks like bubble wrap; fat cells' used for packing and storage
Term
dense irregular connective tissue
Definition
a dense connective tissue that looks like a plate of spaghetti; dark pink tissue deep to darker epithelium at apical surface ; collagen fiber bundles arranged randomly
Term
dense regular connective tissue
Definition
a dense connective tissue that looks like lasagna noodles; fibers have an orderly arrangement
Term
integument (skin)
Definition
forms the outer covering of the body
Term
epidermis
Definition
the surface epithelial layer of the skin; keratinized stratified squamous epithelium
Term
dermis
Definition
the skin's underlying connective tissue layer ; made up primarily of dense irregular connective tissue
Term
subcutaneous layer (hypodermis, superficial fossa)
Definition
a connective tissue layer attaching skin to structures beneath it
Term
stratum corneum
Definition
the most superficial stratum; 20-30 layers of dead, anucleated cells on the apical surface of the epithelium
Term
stratum basale
Definition
the deepest stratum of the epidermis; consists of a layer of darkly stained cells closest to the dermis
Term
papillary layer
Definition
deep to stratum basale; usually thin and light staining; has dermal papillae
Term
dermal papillae
Definition
structures that protrude from papillary layers into epidermis
Term
reticular layer
Definition
deep to the papillary layer and much thicker; contains large, coarse bundles of collagen fibers; usually darker staining
Term
subcutaneous layer
Definition
a layer attaching the skin to underlying structure; areolar and adipose connective tissue
Term
hair follicle
Definition
an oblique tube having an epithelial sheath surrounded by connective tissue
Term
arrector pili muscle
Definition
muscle near follicle that gives you goosebumps when it contracts
Term
sweat glands
Definition
found in dermis or subcutaneous layer, tubes of cuboidal cells gathered together
Term
sweat gland ducts
Definition
tube-shapes of cuboidal cells that move to surface
Term
sebaceous gland
Definition
surrounds hair follicle
Term
chondrocytes
Definition
the cells of cartilage
Term
lacunae
Definition
the spaces in which chondrocytes reside
Term
perichondrium
Definition
a thin dense layer of connective tissue that covers most cartilage surfaces
Term
hyaline cartilage
Definition
glassy appearance
Term
bone(osseous connective tissue)
Definition
a specialized connective tissue with a great deal of rigidity and strength
Term
osteocyte
Definition
the cells of bone
Term
lacuna
Definition
the space in which osteocytes reside
Term
osteons (Haversian systems)
Definition
cylindrical; basic functional / structural unit of compact bone
Term
central (Haversian) canal
Definition
runs longitudinally in the center of each cylindrical osteo
Term
canaliculi
Definition
channels perpendicular to lamellae
Term
perforating canals
Definition
transversely connecting central canals
Term
lamellae
Definition
the concentric layers of bone between lacunae
Term
os coxae
Definition
form pelvic girdle, hip bone
Term
ilium
Definition
upper region of os coxae, above acetabulum
Term
iliac crest
Definition
the superior ridge of the ilium
Term
anterior superior iliac spine
Definition
an anterior projection at the end of the iliac crest
Term
greater sciatic notch
Definition
U-shaped, located inferiorly of the anterior superior iliac spine
Term
acetabulum
Definition
rounded socked
Term
ischium
Definition
rounded surface on the left of os coxae when viewed laterally
Term
ischial tuberosity
Definition
a bony projection that is located inferiorly
Term
obturator foramen
Definition
where the ischium articulates with the pubis; an oval opening
Term
pubis
Definition
flat surface on Right, lower side of os coxae when viewed laterally
Term
pubic tubercle
Definition
a tiny bump located on the anterior superior surface of pubis
Term
femur
Definition
the large bone of the thigh
Term
head of femur
Definition
proximal and rounded
Term
neck of femur
Definition
connect head to shaft; a constricted region
Term
greater trochanter
Definition
on femur; a large prominence on lateral side of proximal part of shaft
Term
lesser trochanter
Definition
a smaller projection located on the posteromedial surface of proximal part of shaft
Term
medial condyle and lateral condyle
Definition
2 oval knobs on distal end of femur that articulate with tibia and help form knee joint
Term
medial epicondyle and lateral epicondyle
Definition
projections on either side of condyles
Term
patella (knee cap)
Definition
triangular shaped bone
Term
tibia
Definition
robust, medial bone of leg
Term
medial condyle and lateral condyle
Definition
located on proximal end of bone and contain concave articular surfaces which articulate with condyles of femur
Term
tibial tuberosity
Definition
a large projection on the anterior proximal surface
Term
medial malleolus
Definition
hook-shaped structure on distal portion of tibia; forms bump on medial side of ankle
Term
fibular notch
Definition
on distal lateral side of tibia, where fibula articulates
Term
fibula
Definition
long, slender, lateral bone of leg
Term
head of fibula
Definition
knob-like proximal portion of fibula
Term
lateral malleolus
Definition
a pointed projection on distal end of tibia
Term
tarsals
Definition
seven large bones in the ankle
Term
talus
Definition
has a rounded upper surface for articulation with tibia
Term
calcaneus
Definition
largest tarsal that forms the heel
Term
metatarsals
Definition
five long bones of foot
Term
phalanges of foot
Definition
big toe has 2, others have 3; short toe bones
Term
articular (joint) capsule
Definition
encloses joint cavity
Term
tibial (medial) collateral ligament
Definition
runs from femur to tibia
Term
fibular (lateral) collateral ligament
Definition
runs from femur to fibula
Term
anterior cruciate ligament
Definition
forms a cross with the posterior cruciate ligament within the joint cavity
Term
medial meniscus and lateral meniscus
Definition
two fibrocartilaginous discs between tibia and femur
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