The introduction to the muscle

Question 1

Muscle Function

Answer 1

produce movement

maintenance of posture

respiration

generate heat

communication

contraction of organs and vessels

contraction of heart

Question 2

functional characteristics

Answer 2

contractibility - ability to shorten

excitability - ability to respond stimulus

extensibility - ability to stretch

elasticity - ability to recoil

Question 3

muscle types

Answer 3

skeletal muscle

smooth muscle

cardiac muscle

Question 4

how to distinguish the types of muscle

Answer 4

location

cell shape and appearance

nucleus

special intracellular connection

striations

control

function

Question 5

location of skeletal muscle

Answer 5

attached to bone or skin

Question 6

location of smooth muscle

Answer 6

single unit muscle in walls of hollow visceral organs.

multi unit muscle in intrinsic eye muscles, airways, large arteries

Question 7

location of cardiac muscle

Answer 7

walls of the heart

Question 8

cell shape and appearance of skeletal muscle

Answer 8

long, cylindrical

Question 9

cell shape and appearance of smooth muscle

Answer 9

spindle shape

Question 10

cell shape and appearance of cardiac muscle

Answer 10

branched, cylindrical

Question 11

nucleus of skeletal muscle

Answer 11

multiple, peripherally located

Question 12

nucleus of smooth muscle

Answer 12

single, centrally located

Question 13

nucleus of cardiac muscle

Answer 13

one or two, centrally located

Question 14

special intracellular connection of skeletal muscle

Answer 14

none

Question 15

special intracellular connection of smooth muscle

Answer 15

none

Question 16

special intracellular connection of cardiac muscle

Answer 16

yes, intercalated

Question 17

striations of skeletal muscle

Answer 17

yes “striated muscle”

Question 18

striations of smooth muscle

Answer 18

no

Question 19

striations of cardiac muscle

Answer 19

yes

Question 20

control of skeletal muscle

Answer 20

voluntary

Question 21

control of smooth muscle

Answer 21

involuntary

Question 22

control of cardiac muscle

Answer 22

involuntary

Question 23

function of skeletal muscle

Answer 23

moves whole body

Question 24

function of smooth muscle

Answer 24

Move food though digestive
Empty urinary bladder
Regulate blood vessel diameter
Contract many glands

Question 25

function of cardiac muscle

Answer 25

contract heart

Question 26

synergists

Answer 26

skeletal muscles work in groups

Question 27

what are fixators

Answer 27

muscles that stabilise structures

Question 28

antagonist

Answer 28

muscle that opposes action of prime mover

Question 29

gluteus

Answer 29

buttocks

Question 30

maximus

Answer 30

large

Question 31

minimus

Answer 31

small

Question 32

longus

Answer 32

long

Question 33

brevis

Answer 33

short

Question 34

deltoid

Answer 34

triangular

Question 35

quadratus

Answer 35

rectangular

Question 36

teres

Answer 36

round and cylindrical

Question 37

abductor

Answer 37

moves away from

Question 38

adductor

Answer 38

moves towards

Question 39

neuromuscular junction

Answer 39

A highly specialised synapse between a motor neuron nerve terminal and its muscle fibre that converts electrical impulses generated by the motor neuron into electrical activity in the muscle fibres.