Neromuscular Junction Physiology

Question 1

motor neuron

Answer 1

cells in the brain and spinal cord that allow us to move by sending commands from the brain to the muscles that carry out that function

Question 2

muscle fiber

Answer 2

a single cylindrical muscle cell

Question 3

Neuromuscular Junction (NMJ)

Answer 3

a synaptic connection between the terminal end of a motor nerve & a muscle

Question 4

Axon Terminals

Answer 4

transmit messages to other cells via use of neurotransmitters at synapses.

Question 5

sarcolemma

Answer 5

envelops the fibers of skeletal muscles

Question 6

receptors

Answer 6

cause responses in the immune system

Question 7

T-tubules

Answer 7

regulate cellular calcium concentration

Question 8

Synapse

Answer 8

a structure that allows a neuron (nerve cell) to pass an electrical or chemical signal to another neuron

Question 9

sarcoplasmic reticulum

Answer 9

transmitts the electrical impulse as well as in the storage of calcium ions
also releases ca2+

Question 10

sarcomere

Answer 10

the basic contractile unit of muscle fiber

Question 11

myofilament

Answer 11

a type of tissue found in skeletal muscles and responsible for voluntary movements of bones

Question 12

myosin, actin, and titin

Answer 12

and actin are the contractile proteins a titin is an elastic protein

Question 13

action potential

Answer 13

a rapid sequence of changes in the voltage across a membrane