PRACTICAL 2: MUSCLES

Question 1

is skeletal muscle straited

Answer 1

yes

Question 2

is skeletal muscle voluntary or involuntary

Answer 2

voluntary

Question 3

location of skeletal muscle

Answer 3

originates and inserts onto bone and sometimes skin/ other muscles

Question 4

muscle cell is what?

Answer 4

muscle cell = muscle fiber

Question 5

fascicles are enclosed in a connective tissue covering called what

Answer 5

the perimysium

Question 6

muscle fibers are surrounded by a delicate layer of connective tissue called what?

Answer 6

the endomysium

Question 7

connective tissue sheath surrounding an entire muscle is called the what?

Answer 7

the epimysium

Question 8

EpiPenS

Answer 8

Epimysium, Perimysium, Endomysium, Sacrolemma

Question 9

T/F: Muscle fibers are very long, cylindrical, multinucleated cells.

Answer 9

true

Question 10

location of cardiac muscle

Answer 10

found in only ventricular and arterial walls of the heart.

Question 11

is cardiac muscle involuntary or voluntary?

Answer 11

involuntary

Question 12

whats different about cardiac muscles in regards to its strations

Answer 12

they branch

Question 13

area where the individual cardiac muscle cells communicate with one another

Answer 13

intercalated disc

Question 14

are cardiac muscles uninucleated, binucleated, or multinulceated

Answer 14

mainly uninucleated, sometmes binucleated

Question 15

location of smooth muscle

Answer 15

located in walls of hollow visceral organs, skin, portions of respiratory tract, and in walls of veins and arteries

Question 16

is smooth muscle involuntary or voluntary

Answer 16

involuntary

Question 17

shape of smooth muscle

Answer 17

long and spindle shaped, with no strations

Question 18

ligament

Answer 18

bone to bone

Question 19

origin

Answer 19

part of joint that doesnt move

Question 20

insertion

Answer 20

part of joint that moves

Question 21

tendon

Answer 21

muscle to bone

Question 22

aponeurosis

Answer 22

an indirect attachment in the form of a flat sheet

Question 23

raphe

Answer 23

divisions in the muscle

Question 24

flexor

Answer 24

reduces joint angle

Question 25

extensor

Answer 25

extends joint angle

Question 26

abductor

Answer 26

moves away from midline

Question 27

adductor

Answer 27

moves towards midline

Question 28

prime mover

Answer 28

produces the most movement

Question 29

synergist

Answer 29

a helper

Question 30

fixator

Answer 30

keeps joint stabilized

Question 31

antagonist

Answer 31

muscle thats relaxing/lengthening

Question 32

intrensic

Answer 32

located in the region that moves

Question 33

extrensic

Answer 33

located outside of the region that moves

Question 34

what two muscle characteristics can flip-flop

Answer 34

prime mover and antagonist

Question 35

medial rotation

Answer 35

turn medially

Question 36

lateral rotation

Answer 36

turn laterally

Question 37

circumduction

Answer 37

ability to make circles

Question 38

dorsiflexion

Answer 38

toes back toward me

Question 39

plantar flexion

Answer 39

pointing toes

Question 40

inversion

Answer 40

rolling ankle

Question 41

eversion

Answer 41

sole of foot faces outside

Question 42

protraction

Answer 42

pushing forward

Question 43

retraction

Answer 43

pushing backward

Question 44

elevation

Answer 44

pulling up

Question 45

depression

Answer 45

pulling down

Question 46

supination

Answer 46

anatomical position; palms facing up

Question 47

pronation

Answer 47

anatomical position; palms facing down

Question 48

opposition

Answer 48

thumb and pinky crossing over

Question 49

reposition

Answer 49

resetting to anatomical position