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CH 1: Anatomy and Biomechanics
Review for CH 1 of ACSM Personal Trainer Certification
115
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Professional
11/02/2011

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Term
Gross Anatomy
Definition
1) Can be learned as regional or topographical anatomy organized according to regions, parts, or divisions of the body (e.g hand, mouth)
2) Can be learned as systemic anatomy organized according to organ systems (e.g. respiratory, nervous).
Term
Biomechanics
Definition
The field of study concerned with the principles of physics related to energy and force as they apply to the human body.
Term
Proximal
Definition
Nearest to eh body center, joint center, or reference point.
Term
Distal
Definition
Away from the body center, joint center, or reference point
Term
Superior (Cranial)
Definition
Above, toward the head.
Term
Inferior (caudal)
Definition
lower than, toward the feet
Term
Anterior (ventral)
Definition
toward the front
Term
Posterior (dorsal)
Definition
Toward the back
Term
Medial
Definition
Closer to the midline
Term
Lateral
Definition
Away from the midline
Term
Segmental moves occur around an ________ and in a _______. Each ________ has an associated _________ lying perpendicular to it.
Definition
axis, plane, plane, axis
Term
The body has _______ _________ planes.
Definition
three cardinal
Term
The _______________ makes a division into right and left portions.
Definition
Sagittal Plane
Term
The _______________ makes a division into anterior (front) and posterior (back) portions
Definition
frontal plane
Term
The ____________ or (_______________) makes a division into upper (superior) and lower (inferior) portions.
Definition
Transverse plane, horizontal plane
Term
How many axes in the body?
Definition
Three
Term
Mediolateral axis
Definition
lies perpendicular to the sagittal plane
Term
Anteroposterior axis
Definition
lies perpendicular to the frontal plane
Term
Longitudinal axis
Definition
lies perpendicular to the transverse plane
Term
Flexion
Definition
the movement that decreases the joint angle. Occurs in the sagittal plane around the mediolateral axis.
Term
Extension
Definition
movement to increase the joint angle. It occurs in a sagittal plane around the mediolateral axis
Term
Adduction
Definition
movement toward the midline of the body in a frontal plane around an anteroposterior axis.
Term
Abduction
Definition
Movement away from the midline of the body in a frontal plane around an anteroposterior axis.
Term
Rotation
Definition
movement around a longitudinal axis and in the transvers plane, either toward the midline (internal) or away from teh midline (external).
Term
Circumduction
Definition
a combination of flexion, extension, abduction, and adduction. The segment moving in a cone.
Term
Pronation
Definition
rotational movement at the radioulnar joint in a transverse plane around a longitudinal axis that results in the palm facing downward.
Term
Supination
Definition
rotation movement at the radioulnar joint in a transverse plane around a longitudinal axis that results in the palm facing upward.
Term
Plantarflexion
Definition
extension at the ankle joint
Term
Dorsiflexion
Definition
is flexion at the ankle joint
Term
Eversion
Definition
turning the sole of the foot away from the midline (outward).
Term
Inversion
Definition
turning of the sole of the foot toward the midline (inward)
Term
Axial Skeleton
Definition
includes the bones of the skull, vertebral column, ribs, and sternum. It forms the longitudinal axis of the body, supports and protects organ systems, and provides surface area for the attachment of muscles.
Term
Skull
Definition
Comprised of 29 bones. Most significant is the mandible.
Term
Mandible
Definition
Most significant bone in the skull, can be used as an orientation landmark for palpating the carotid artery to assess the pulse.
Term
Spine or vertebral column
Definition
Serves as the main axial support for the body.
1) 33 vertebrae: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused into the sacrum), and 4 coccygeal (fused into the coccyx).
Term
Intervertebral discs
Definition
- round, flat, or platelike structures composed of fibrocartilaginous tissue.
a. the outer, fibrocartilaginous portion of the disk is the annulus fibrosus.
b. the inner gelatinous portion is the nucleus pulposus.
c. disks unite the vertebral bodies and serve to absorb shock and bear weight.
Term
What are the 4 major curves of the adult vertebral column
Definition
Thoracic, sacral, cervical, and lumbar
Term
Kyphosis
Definition
having a convexity of the curve is posteriorly directed. These primary curves retain the same directional curve as the spine of the fetus. (sacral and thoracic curves)
Term
Lordosis
Definition
The cervical and lumbar regions have a convexity of the curve interiorly directed. These secondary curves develop after birth as the infant progresses in weight bearing.
Term
Abnormal curves in the sagittal plan of the spine
Definition
hyperkyphosis (exaggerated posterior thoracic curve) and hyperlordosis (exaggerated anterior curve of the lumbar curve).
Term
Abnormal curve of the spine in the frontal plane
Definition
scoliosis (lateral deviation)
Term
Ribs
Definition
the body has 12 pairs of ribs: 7 true, in which the costal cartilage articulates directly with the sternum, and 5 pairs that do not articulate directly with the sternum.
Term
The costal cartilage of ribs 8, 9 , 10 articulate with the costal cartilage of the _________.
Definition
Adjacent superior rib
Term
The cartilaginous ends of ribs 11 and 12 are _______ from articulation.
Definition
free
Term
intercostal spaces
Definition
the spaces between the ribs.
- the palpation of the spaces between the ribs in important for the correct placement of ECG electrodes (in the 4th and 5th space)
Term
Sternum
Definition
- lies in the midline of the chest
- comprised of 3 parts: manubrium (superior), body (middle), and xiphoid process (inferior).
Term
Sternal angle
Definition
slightly raised surface landmark where the manubrium meets the body of the sternum.
Term
xiphod process
Definition
surface landmark situated at the bottom of the sternum and in the middle of the inferior border of the rib cage. Palpation of this landmark is important for CPR.
Term
Appendicular skeleton
Definition
bones of arms and legs and the pectoral ad pelvic girdles
Term
Clavicle
Definition
Articulates with the sterna; manubrium proximally and the scapulae distally and are positioned just superior to the first rib.
- palpation of the clavicle helps to place electrodes for ECG and defibrillation
Term
Scapulae
Definition
- situated on the posterior side of the body in the region of the first 7 ribs.
- 2 important landmarks: inferior angle (used for skinfold site location) at the bottom of the scapulae, forming the junction between the medial and lateral borders and acromion process (used for shoulder breadth measurement), the bony process at the most lateral part of the shoulder.
Term
Upper arm
Definition
comprised of the humerus that articulates proximally with the glenoid fossa of the scapula and distally withe the ulna and radius.
Palpable landmarks are the medial and lateral epicondyles and its distal end (used for elbow width measurement in estimating frame size).
Term
Forearm
Definition
comprised of 2 bones (ulna and radius).
- The most prominent bony landmark of the forearm is the olecranon process on the posterior ulna.
- At the distal end the radial and ulnar styloid processes help to identify the proper location for assessing radial pulse.
Term
Pelvic girdle
Definition
- formed of the hip bones (ilium, ischium and pubis), sacrum and coccyx.
- superior most aspect of the ilium is the iliac crest, and the anterior most structure is the anteriorsuperior iliac spine.
- these structures are easily palpated and serve as landmarks for skinfold measurement.
Term
Thigh
Definition
- comprised of the femur
- most easily palpated landmark is the greater trochanter on the proximal lateral side
- distally the patella is located anterior to the knee joint. It serves as a landmark for locating the high skinfold.
Term
Bone
Definition
- An osseous tissue
- functions to provide support, protects organs and tissues, serves as levers, provide storage of calcium, and produces blood cells
Term
periosteum
Definition
the covering of bone that isolates it from the surrounding tissues and provides circulatory and nervous supply
Term
What are the types of bone?
Definition
Compact (cortical, dense) and cancellous (trabecular, spongy)
Term
What are the bone shapes?
Definition
Long, short, flat, irregular
Term
Long bones
Definition
- found in the appendicular skeleton
- have a cylindrical shaft or diaphysis, with an epiphysis at each end
Term
Diaphysis
Definition
consists of compact bone surrounding a thin layer of cancellous bone, within which lies the medullary cavity, which is filled with yellow bone marrow.
Term
Epiphysis
Definition
consists of cancellous bone surrounded by a layer of compact bone. Red bone marrow is contained in the porous chambers of spongy bone; hematopoiesis (production of red blood cells, white blood cells, and platelets) occurs within red bone marrow. Epiphysis articulate with adjoining bones and are covered with articular (hyaline) cartilage, which facilitates joint movement.
Term
Epiphyseal Plate
Definition
in immature long bones, the junction between the epiphysis and the diaphysis is the location of the epiphyseal plate, where growth of long bone occurs.
Term
Short bones
Definition
- almost cuboidal in shape (e.g. bones of wrist and ankle)
- often covered with articular surfaces that interface with joints.
Term
flat bones
Definition
thin and relatively broad (e.g. bones of the skulls, ribs, and scapulae).
Term
Irregular Bones
Definition
mixed shapes that do not easily fit into other categories (e.g. vertebrae)
Term
Basic components of connective tissue
Definition
- specialized cells (e.g in blood, bone , cartilage)
- extracellular protein fibers (e.g elastin, collagen, fibrin)
- Ground substance
Term
Functions of connective tissue
Definition
Provide support, transport materials, store mechanical energy reserves, and perform regulatory functions.
Term
Types of synovial joints, examples and movements produced?
Definition
- Ball and socket (hip/shoulder) circumduction, rotation, moves in all planes
- Condyloid (wrist) abduction, adduction, flexion, extension
- gliding (ankle subtalar) inversion/eversion)
- hinge (knee, elbow) flexion/extension
- Pivot (atlas/axis) rotation around a central axis
- Saddle (Thumb) flexion, extension, abduction, adduction, circumduction, and opposition
Term
Classifications of joints
Definition
Structural (fibrous, cartilaginous, synovial)
Function (immovable, slightly moveable, freely moveable)
Term
Fibrous Joint
Definition
structures of the skull
Term
Cartilaginous Joint
Definition
disks between vertebrae
Term
Synovial Joint
Definition
- Hip Elbow
- Bony surfaces covered with articular cartilage
- surrounding the joint is a fibrous joint capsule
- inner surfaces of the joint cavity are lined with synovial membranes
- synovial fluid from the membrane provides lubrication to the joint
- some synovial joins contain fibrocartilaginous disks (knee)
- Bursae reduce friction and act as shock absorbers
Term
Movements @ synovial joints
Definition
- Angular movements (decrease or increase the joint angle) include flexion, extension, hyperextension, abduction and adduction.
- Circular movements include rotation (medial or lateral, supination or pronation) and circumduction. These movements occur at joints with a rounded surface articulating with the depression of another bone.
- Special movements include inversion, eversion, protraction, retraction, elevation and depression.
Term
Types of muscles in the skeletal system?
Definition
skeletal, cardiac and smooth
Term
Feature of skeletal muscle
Definition
controlled voluntarily
Term
Epimysium
Definition
the outer layer of muscle that separates the muscle from the surrounding tissues and organs
- converge at the end to form the tendon that attaches the muscle to bone
Term
perimysium
Definition
the central layer that divides that muscle into compartments called fascicles that contain skeletal muscle cells (muscle fibers)
Term
endomysium
Definition
the inner layer of muscle that surrounds each muscle fiber
Term
Motor neuron
Definition
controls each skeletal muscle fiber
Term
Motor Unit
Definition
The motor neuron and all the muscle fibers innervated
Term
Communication between motor neurons and a skeletal muscle fiber occurs at the _____________.
Definition
Neuromuscular junction
Term
Each axon of the motor neuron ends at a _____________. containing the neurotransmitter _____________.
Definition
synaptic knob, acetylcholine (ACh).
Term
Synaptic Cleft
Definition
separates the synaptic knob from he sarcolemma of the skeletal muscle fiber
Term
sarcolemma
Definition
part of the motor end plate that contains chemically gated sodium channels and membrane receptors that bind ACh.
Term
sarcoplasm
Definition
the cytoplasm of a muscle cell
Term
transverse or T-tubules
Definition
a network of tubes that form as an extension of the sarcolemma
Term
the ___________ extend into the sarcoplasm and communicate with the _______________, which stores calcium in special sacs called ___________.
Definition
T-tubules, sarcoplasmic reticulum, terminal cisternae
Term
____________ contain myofilaments, which consist of the contractile proteins ______ and _______.
Definition
Myofibrils, actin, myosin
Term
Myofilaments
Definition
organized in repeating functional units called sarcomeres
Term
Actin and myosin form ____________ and slide past one another during ___________, thus ________ the sarcomeres.
Definition
crossbridges, contraction, shortening
Term
Tropomyosin
Definition
covers the actin bridge site during resting condition
- attaches to troponin
Term
________ and _________ regulate bridging of actin and myosin for __________ and ___________.
Definition
tropomyosin, troponin, muscle contraction, relaxation
Term
Origin
Definition
the proximal attachment of a muscle
Term
insertion
Definition
the distal attachment of a muscle
Term
agonist
Definition
the prime mover is responsible for producing a particular movement.
Term
antagonist
Definition
the prime mover that opposes the agonist
Term
synergist
Definition
assists the prime mover but is not the primary muscle responsible for the action
Term
Muscle landmarks that have clinical importance are?
Definition
sternocleidomastoid, pectoralis major, biceps brachii, triceps brachii, gluteus maximus, quadricepts femoris, and gastrocnemius.
Term
Inguinal crease
Definition
the landmark for skinfold measurement which is a natural, diagonal crease in the skin formed where the musculature of the thigh meets the pelvic girdle.
Term
What are the 4 chambers of the heart?
Definition
right and left atria, right and left ventricles
Term
Pericardium
Definition
the connective tissues surrounding the heart
Term
Heart - The _____ lie superior to the _______.
Definition
Atria, ventricles
Term
the _________ marks the border between the atria and the ventricles.
Definition
coronary sucus
Term
the atria have _________ walls and, when not filled with blood, are called ______.
Definition
thin muscular, auricles
Term
the ventricles have _________ walls.
Definition
thicker muscular
Term
the _________ marks the boundary between the left and right ventricles
Definition
interventricular sulcus
Term
the _____ lies inferiorly at the _____ of the heart
Definition
apex, tip
Term
the ______ receives blood from the systemic circulation through the __________ and __________.
Definition
right atrium, superior, inferior venae cavae
Term
__________ return venous blood from the myocardium to the coronary sinus, which opens to the right atrium
Definition
coronary veins
Term
Each atrium communicates with the ventricle on the same side by way of an ___________. the right _________ is a _________ the left _________ is a ___________.
Definition
AV valve, av valve, tricuspid valve, av valve, bicuspid valve
Term
each cusp is braced by _______ which are connected to _________.
Definition
chordae tendineae, papillary muscles
Term
oxygenated blood leaving the __________ flows through the _________ or _____ valve to the aorta.
Definition
left ventricle, left semiluar or aortic
Term
What is the process of circulation of blood through the heart?
Definition
Blood from the periphery flows through the superior and inferior venae cavae, right atrium, tricuspid valve, right ventricle, pulmonic semilunar valve, pulmonary arteries, and then lungs. Blood from the lungs flows through the left pulmonary vein, left atrium, bicuspid valve, left ventricle, aortic semilunar valve, ascending aorta, and then systemic circulation.
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