Chapter 17

Question 1

Skeletal muscle contractions produce ____ of the body as a whole or ____ of its parts. Cardiac; smooth; skeletal

Answer 1

Movement

Question 2

Smooth endoplasmic reticulum (holding area) this area is equivalent to this
Network of tubules + sacs found within muscle fibers. Continually pumps CA2+ ions from the sarcoplasm + stores the ions within its for later release

Answer 2

Sarcoplasmic reticulum

Question 3

Plasma, membrane of muscle fibers

Answer 3

Sarcoplasmic membrane/ sarcolema (more likely to be used)

Question 4

If you have poor ___ of disrupts function. Of the body. Continued partial contraction of many skeletal muscles makes it possible for sitting, standing and relatively stable position of the body

Answer 4

Posture

Question 5

Shivering warms the body. Type of this. They produce this (muscle cells) through a process as catabolism. Skeletal muscles contraction constitute one of the most important part of the mechanism for maintaining homeostasis of temperature

Answer 5

Heat production.

Question 6

Ability to contract or shorten allows muscle tissue to pull on bones and then produce body movement. The pulling ends pull regardless whether the cell actually shorten

Answer 6

Contractibility

Question 7

Transverse tubules formed by inward extension of the sarcolemma membrane has ion pumps continually transport calcium ions inward from sarcolemma allows for faster activation of Cell charged particles. Allows electrical impulses traveling along sarcolemma to move deeper into cell.

Answer 7

T-tubles

Question 8

The ability to extend or stretch thereby allowing muscles to return to their resting length

Answer 8

Extensibility

Question 9

Irritability also known as the ability to be stimulated

Answer 9

Excitability

Question 10

Segment of myofibril between two successive z-disks

Answer 10

Sarcomere

Question 11

Numerosos fibrils packed close together in sarcoplasm. Are bundles a very fine cytoskeleton filaments that extend lengthwise along skeletal muscle fibers and fill sarcoplasm

Answer 11

Myfibrilos

Question 12

Also called the Z line microscopic structure with in the myofibril of muscle fiber where the thin filament unite with each other and form netlike disk.

Answer 12

Z-disks

Question 13

Triplet of tubules T2 Beulah sandwich between two sacks of sarcoplasmic reticulum. Allows an electrical impulse traveling along a T-tuble to stimulate the membranes of adjacent sacs of sarcoplasmic reticulum

Answer 13

Triad

Question 14

Produces ATP or energy power plant of cell

Answer 14

Mitochondria

Question 15

Controls what enters and leaves the cell

Answer 15

Cell membrane—> sarcoplasmic membrane (sarcolema)

Question 16

Junction of thick myofilaments with the thin myofilaments in the myofibril of the muscle fiber where the head of myosin molecule in thick filament binds to active site of an active molecule in the thin filament

Answer 16

Cross bridge

Question 17

Motor neurons connect to sarcolemma at motor endplate. Synapse with the neurotransmitter molecules transmit signals

Answer 17

Neuromuscular junction

Question 18

Ultra microscopic threadlike structures found in my fibrils composed of myosin and actin

Answer 18

Myofilaments

Question 19

Contractile protein found in thick filaments of skeletal muscle myofilaments

Answer 19

Myosin

Question 20

Contractile protein found in thin myofilaments of skeletal muscle

Answer 20

Actin

Question 21

Also known as the father cell. Long protein molecule that covers active sites of actin

Answer 21

Tropomyosin

Question 22

Also known as the mother cell. Protein molecule and thin filaments of a muscle fibers spaced at intervals along tropomyosin strands that block active sites on the myofilaments are at rest. They sit in between the active sites of Acton and tropomyosin of my calcium stick to this it moves tropomyosin out of way

Answer 22

Troponin

Question 23

Acetylcholine (ACh) released from motor neuron causes electrical impulses of sarcolemma calcium is released into the sarcoplasma(liquid portion of a cell) Sodium causes this

Answer 23

Excitation

Question 24

For this to occur calcium has to be released into the sarcoplasma

Answer 24

Contraction

Question 25

Immediately after calcium ions are released into the sarcoplasmic reticulum begins actively pumping them back into the sacs. Calcium ions are removed from the troponin molecules and thereby shutting down contraction

Answer 25

Relaxation

Question 26

Oxygen needed for catabolism process

Answer 26

Aerobic respiration

Question 27

Process that may allow the body to avoid the use of oxygen in short-term but not in long-term

Answer 27

Anaerobic respiration

Question 28

Small+ weak; dark red due to lots of myoglobin. | Stores high energy phosphate call produces lots of ATP gives phosphate to ADP to make ATP

Answer 28

Slow oxidative