Human Anatomy Test 2

Question 1

Synarthrosis

Answer 1

No movement
Fibrous
Suture
Gomphosis
Cartilaginous
Synchondrosis

Question 2

Amphiarthrosis

Answer 2

Little movement
fibrous
syndesmosis
cartilaginous
symphysis

Question 3

Diarthrosis

Answer 3

Free movement
synovial
monaxial
biaxial
triaxial

Question 4

Linear motion

Answer 4

sliding or gliding

Question 5

Angular motion

Answer 5

angle of bones change with respect to each other

Question 6

Rotation

Answer 6

One bone can rotate against or within another

Question 7

Linear motion occurs at

Answer 7

Plane-type joints
-intertarsal
-intercarpal
-acromioclavicular

Question 8

Angular motion types

Answer 8

flexion
extension
lateral flexion

Question 9

Rotational motion types

Answer 9

left, right
medial, lateral
supination, pronation

Question 10

Between bodies of vertebrae

Answer 10

cartilaginous joints
(symphysis)

Question 11

MovementBetween articular processes

Answer 11

Gliding
(Synovial)

Question 12

Muscles in the shoulder that traverse ball and socket joint

Answer 12

Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

Question 13

Dislocations

Answer 13

-acromioclavicular
-glenohumeral

Question 14

Sprain

Answer 14

overstretching or tearing of ligaments/ joints

Question 15

Arthiritis

Answer 15

inflammation of joint

Question 16

Osteoarthiritis

Answer 16

inflammation of a joint resulting from breakdown of articular cartilage

Question 17

Rheumatoid arthritis

Answer 17

Inflammation of joint due to attack on synovial components by immune system

Question 18

Excitability

Answer 18

reactive to stimuli from nervous system or environment, generate electrical and mechanical response

Question 19

Contractility

Answer 19

cells actively shorten upon simulation, generates tension

Question 20

Extensibility

Answer 20

Cells can lengthen when pulled

Question 21

Elasticity

Answer 21

Tendency to rebound to some resting length after contraction or extension

Question 22

Skeletal muscle

Answer 22

mutinucleate cells; striated
Voluntary movement

Question 23

Smooth Muscle

Answer 23

central nuclei; no striations
propels substances; involuntary control; walls of hollow organs

Question 24

Cardiac Muscle

Answer 24

single central nucleus;
visible striations;
involuntary

Question 25

Functions of skeletal muscle

Answer 25

Movement posture bosy position support soft tissue guard entrances and exits maintain body temperature store glucose and amino acids

Question 26

Myofibril

Answer 26

cylindrical bundle of myofilaments

Question 27

Thin myofilaments have _____

Answer 27

actin, tropomyosin, troponin and Z-line

Question 28

Thick myofilaments have _______

Answer 28

Myosin and M-line

Question 29

Skeletal muscle cells vary in

Answer 29

size, speed, amount of force and endurance

Question 30

Type 1 fibers

Answer 30

slow, oxidative, aerobic metabolism, low force generation

Question 31

Type 2B fibers

Answer 31

fast, glycolytic, big, anaerobic metabolism, high force generation

Question 32

Type 2A fibers

Answer 32

fast, oxidative, fatigue resistant, medium force generation

Question 33

Pennate

Answer 33

fibers attached to tendon at oblique angle, like a feather

Question 34

cardiac muscle is _____

Answer 34

electrically interconnected with one another

Question 35

Intercalated discs contain

Answer 35

ion channels (gap junctions)

Question 36

Ion channels let ____

Answer 36

electrical activity to spread easily from one cell to another (heartbeat)

Question 37

In smooth muscle, cells are arranged in ____

Answer 37

sheets

Question 38

Structural characteristics of smooth muscle are _____

Answer 38

actin and myosin are not arranged in sarcomeres or myofibrils; actin is attached to dense bodies scattered throughout the cell

Question 39

Functional characteristics of smooth muscle

Answer 39

contraction causes shortening and twisting contraction slow, smooth, sustained and resistant to fatigue contraction is involuntarily controlled

Question 40

Agonist

Answer 40

muscle that contracts during movement

Question 41

Synergist

Answer 41

assists agonist in generating movement force

Question 42

Antagonist

Answer 42

relaxes during joint movement