Ch. 9a quiz review, mucles

Question 1

The outermost layer of connective tissue surrounding a skeletal muscle

Answer 1

epimysium

Question 2

transmits muscle impulses into the cell interior

Answer 2

transverse tubules

Question 3

the functional unit of muscle contraction

Answer 3

sarcomere

Question 4

store in vesicles in motor neuron endings

Answer 4

neurotransmitters

Question 5

this enzyme serves to decompose acetylcholine in the synaptic cleft

Answer 5

acetylcholinesterase

Question 6

at neuromuscular junction, the muscle fiber membrane folds, forming a

Answer 6

motor end plate

Question 7

the toxin that causes ______ prevents the release of aacetylcholine

Answer 7

botulism

Question 8

the functional connection between a neuron and a skeletal muscle fiber

Answer 8

synapse

Question 9

the characteristic of reddish brown color of skeletal muscle comes from

Answer 9

myoglobin

Question 10

a motor neuron and the muscle fibers connected to it are referred to as a

Answer 10

motor unit

Question 11

the minimum strength of stimulation required to contract a muscle fiber

Answer 11

threshold stimulus

Question 12

a recording of the events of a twitch

Answer 12

myogram

Question 13

contraction of a muscle without a change in length

Answer 13

isometric contraction

Question 14

an example of partial but sustained contraction

Answer 14

muscle tone

Question 15

the increase in the number of motor units activated as a result of more intense stimulation

Answer 15

recruitment

Question 16

a band of trough connective tissue to which abdominal wall muscles attach

Answer 16

linea alba

Question 17

muscle located in the cheek

Answer 17

buccinator

Question 18

adducts and flexes the arm

Answer 18

coracobrachialis

Question 19

forms part of the calf

Answer 19

soleus

Question 20

where does the palmaris longus insert?

Answer 20

onto fascia

Question 21

where is the triangle of auscultation (commonly used to hear sounds of respiratory organs) located

Answer 21

near the border of the trapezius and latissimus dorsi

Question 22

a condition found in people with a deficiency of acetylcholine receptors

Answer 22

myasthenia gravis

Question 23

separates individua muscle fibers/cells from eachother

Answer 23

endomysium

Question 24

a forceful, sustained contraction

Answer 24

tetanic contractions

Question 25

the combination of a series of witches to produce a more forceful contraction

Answer 25

summation

Question 26

the rhythmic, wavelike motion produced by smooth muscles in tubular visceral organs is called

Answer 26

peristalsis

Question 27

the muscle that covers the upper part of the cranium

Answer 27

epicranius