Anatomy & Physiology Essay Questions

Anatomy & Physiology Essay Questions

Description

Don't use plagiarized sources. Get Your Custom Essay on

Just from $15/Page

Order Essay

Fill out word document

Muscle Worksheet Points: 30 points

Soft Deadline: 3/24/2021 Hard Deadline: 3/30/2021

Part A – Muscle Anatomy–Fill in the blanks using the word bank.

(Endomysium, Epimysium, Muscle fiber, Myofibril, Perimysium, Tendon, Fascicle, Muscle, Sarcolemma, Sarcomere, Sarcoplasm, Myofilaments) 6 points

1	The part of the Connective tissue that can connect muscle to bone
2	A bundle of fascicles
3	This connective tissue covers a muscle
4	A discrete bundle of muscle cells
5	Connective tissue that covers a fascicle
6	Muscle cell is also called
7	Thin connective tissue that covers a muscle cell
8	Cell membrane of a muscle cell
9	Long, filamentous organelle within a muscle cell that gives a banded appearance
10	Includes actin and myosin
11	Cytoplasm of a muscle cell
12	Contractile unit of a muscle; The area between Z disks.

(Mitochondria, t-tubules, synaptic cleft, sarcomere, acetylcholine, sarcoplasmic reticulum, motor unit)

1	The combination of the motor neuron and muscle fiber
2	The space between the motor neuron and muscle fiber
3	The neurotransmitter released at the neuromuscular junction used to carrythe signal across this gap.
4	Part of the Sarcolemma that forms a tube deep into the muscle fiber to carry the signal.
5	Organelle that releases calcium in response to the action potential

Number the events leading to a muscle contraction in the order they occur.5 points

Step #	Event
	Calcium is released from the S.R. as the action potential passes down the T-tubule
1	A nerve impulse reaches the synapse
	Calcium allows the actin-myosin complex to connect, beginning the contraction process
	Acetylcholine crosses the synaptic cleft and binds to the muscle cell, causing it to depolarize
	Acetylcholine is broken down by acetylcholinesterase

PART C – MUSCLE CONTRACTION

(Lactic acid, Calcium, ATP, Creatine phosphate, Acetylcholine, Myoglobin)

A	Exposes the binding site allowing actin and myosin to bind and form a crossbridge.
B	This attaches to break the cross bridge and is later split to re-energize the myosin head.
C	This neurotransmitter causes an action potential on a muscle fiber leading to calcium release.
D	Special oxygen carrying protein found in muscle cells
E	Substance produced from pyruvic acid during anaerobic respiration that makes muscles burn.
F	Substance (often taken as a supplement) used to quickly replenish ATP suppliesduring strenuous exercise.

PART D –EXERCISE AND MUSCLES. 3 points

1	After strenuous exercise, a person breathes rapidly to replace the oxygen needed to get rid of lactic acid and restart aerobic respiration. This amount of oxygen is called the:
2	Term that describes muscle fibers getting smaller due to disuse
3	Muscles used to generate quick, powerful contractions but tire quickly arecalled:
4	List an activity that uses this muscle type
5	Muscles that have weaker contractions but more endurance are called:
6	List an activity that uses this muscle type

PART E – TYPES OF MUSCLE2 points

1	Muscle type that is voluntary, striated, and attached to bone is called this.
2	These muscles lack striations and are involuntary.
3	Muscles that have striations, are involuntary, and only found in the heart
4	The connecting junctions found only between cardiac muscle fibers, thathelp to propagate the contraction signal from one fiber to the next are called:

PART F – MUSCLE MOVEMENTS 4 points

1	Prime mover for forearm flexion
2	Antagonist to forearm flexion
3	Group of leg muscles responsible for extension
4	Group of leg muscles responsible for flexion
5	The origin for the biceps brachii is
6	Insertion of biceps brachii is
7	The origin for sternocleidomastoid is
8	Insertion of sternocleidomastoid is

Citations 1 point

Anatomy & Physiology Essay Questions