Chapter 2

Question 1

What systems make up the Human Movement System

Answer 1

Nervous, Muscular, and Skeletal

Question 2

What system is known as the communication system of the body?

Answer 2

Nervous system- where all movement begins

Question 3

What are the 2 subsystems of the nervous system

Answer 3

CNS and PNS

Question 4

What does the CNS consist of

Answer 4

Brain and Spinal cord

Question 5

Which of the nervous systems subsystems is the primary decision maker

Answer 5

CNS

Question 6

What does the PNS consist of

Answer 6

Nerves from the CNS to the entire body

Question 7

What does the PNS do

Answer 7

Send messages to CNS. Carries out actions from the CNS to the effector sites.

Question 8

What are the 3 types of neurons

Answer 8

Sensory (afferent),interneurons, motor (efferent) neurons

Question 9

Which neurons transmit nerve impulses form effector sites to the brain and spinal cord. These send info from the environment up to the brain

Answer 9

Sensory neurons

Question 10

What do interneurons do?

Answer 10

Transmit nerve impulses from one neuron to another.

Transmits messages from sensory neurons to the motor neurons

Question 11

Which neurons transmit nerve impulses form the brain and spinal cord to effector sites. Sends messages from the brain to the body

Answer 11

Motor (efferent) neurons

Question 12

Name the 3 types of mechanoreceptors

Answer 12

Golgi Tendon organs
Muscle spindles
Joint receptors

Question 13

Which receptor is responsible for sensing tension in muscles and connective tissue and forces muscle to relax

Answer 13

Golgi tendon Organ

Question 14

Which receptor is responsible for sensing length in the muscle and forces the muscle to contract when stimulated?

Answer 14

Muscle spindles

Question 15

Which receptor is responsible for sensing motion, acceleration, and deceleration in the joints. It protects the joints from a compromising situation

Answer 15

Joint receptors

Question 16

Which system is compromised of muscles that work to move and stabilize the body

Answer 16

Muscular system

Question 17

The muscular system is comprised of skeletal muscle tissue whose main function is what

Answer 17

contract on bone to create movement on joints

Question 18

Primary mover of the joint (usually larger muscle)

Answer 18

Agonist

Question 19

Opposing muscle of the prime mover. Decelerates the movement the agonist is producing

Answer 19

Antagonist

Question 20

Lends assistance to the prime mover. Will start to take over for a weak prime mover

Answer 20

Synergist

Question 21

Stabilizes the body and prevents unwanted movements

Answer 21

Stabilizers

Question 22

During a chest press, name the following:
Agonist:
Antagonist:
Synergist:
Stabilizer:

Answer 22

Agonist: Pectoralis major
Antagonist: Posterior deltoid
Synergist:Anterior deltoid and triceps
Stabilizer:Rotator cuff

Question 23

During an overhead press name the following:
Agonist
Antagonist
Synergist
Stabilizer

Answer 23

Agonist: Deltoid
antagonist: Latissimus dorsi
Synergist:Triceps
Stabilizer: Rotator cuff

Question 24

During a squat, name the Agonist, Antagonist, Synergist, and Stabilizer

Answer 24

Agonist: Glutes
Antagonists: Psoas
Synergist: Hamstrings
Stabilizers: Transverse Abs

Question 25

During a row, name the Agonist, antagonist, synergist, and stabilizer muscles

Answer 25

Agonist: Lat dorsi Antagonist: Pectoralis major Synergist:Posterior deltoid and biceps Stabilizer: Rotator cuff

Question 26

Which system is responsible for support, protection, and allowing movement to occur

Answer 26

Skeletal system

Question 27

What are the two functions of the skeletal system

Answer 27

LEVERAGE for our muscles | SUPPORT that directly affects our posture

Question 28

Joint motion

Answer 28

arthokinematics

Question 29

Rolling bone ex

Answer 29

Squat. Femoral condyles roll over tibial condyles

Question 30

Spin bone ex

Answer 30

Head of radius; end of humerus; during pronation and supination

Question 31

Sliding bone ex

Answer 31

tibial slide across femoral in knee extn

Question 32

Cumulative sensory input to the CNS from all mechnoreceptors that sense limb movement and body position

Answer 32

Proprioception

Question 33

A layer of connective tissue that is underneath the fascia and surrounds the muscle

Answer 33

Epimysium

Question 34

Deepest layer of connective tissue that surrounds individual muscle fibers

Answer 34

endomysium

Question 35

Connective tissue that surrounds fasicles

Answer 35

Perimysium

Question 36

Whats the first step in initiating a contraction

Answer 36

ACH is released

Question 37

``` slow twitch more capillaries smaller in size increased O2 produces less force Longterm contractions (stabilization) slow to fatigue ```

Answer 37

Type 1

Question 38

``` Fewer capillaries larger in size decreased o2 produces greater force short term contractions (force and power) quick to fatigue fast twitch ```

Answer 38

Type 2

Question 39

Support mechanisms of blood explain

Answer 39

Transportation - transports 02, nutrients to tissues, transports hormones to organs and heat to body Regulation- body temp and acids Protection- clotting and infection

Question 40

Ability of the nervous system to sense changes in either the internal or external enviroment

Answer 40

Sensory function

Question 41

Neuromuscular response to sensory info

Answer 41

Motor function

Question 42

Ability of the nervous system to analyse and interpret sensory info to allow for proper decision making which produces the appropriate response

Answer 42

Intergrative function

Question 43

Functional unit of muscle that produces muscular contraction consists of repeating sections of actin and myosin

Answer 43

Sarcomere

Question 44

A motor neuron and all its muscle fibers in innervates

Answer 44

Motor unit

Question 45

Explain what happens to insulin when you exercise | Explain r/s with glucagon

Answer 45

Insulin regulates glucose metabolism by lowering glucose, what isnt used gets stored. Glucagon is a hormone that releases stored gylocgen and converts back to glucose to be used. Exercise decreases insulin , but increase glucagon secretion, therefore maintaining steady levels of blood glucose.

Question 46

Effects of Catecholamines

Answer 46

Increase HR, SV, blood glucose. redistrubtes blood to working tissues and opens up airways