Basic Exercise Science chapter 2-1

Question 0

What are the 3 primary functions of the nervous system?

Answer 0

Sensory function
Integrative function
Motor function

Question 1

Name the components that make up the human movement system.

Answer 1

Nervous system
Skeletal system
Muscular system
Also known as the kinetic chain

Question 2

What is the nervous system

Answer 2

A large group of cells that form nerves which provide a communication network within the body.

Question 3

Describe the sensory function

Answer 3

The ability if the nervous system to sense change in the internal or external environment.

Question 4

Describe the integrative function

Answer 4

The ability of the nervous system to interpret sensory info allowing for proper decision making and producing the appropriate response.

Question 5

Describe motor function

Answer 5

The neuromuscular response to sensory info.

Question 6

The nervous and muscular system

Answer 6

Neuromuscular

Question 7

Which system in the kinetic chain dictates movement

Answer 7

Nervous system

Question 8

What is a neuron

Answer 8

The functional unit of the nervous system .

Question 9

Many neuron together form …

Answer 9

The nerves of the body.

Question 10

Neuron are comprised of 3 main parts, what are they?

Answer 10

Cell body (soma)
Axon
Dendrites

Question 11

What is the name of the neuron that looks like cylindrical projection from the cell body, that transmits nervous impulses to other neurons or effector sites (muscles, organs other neurons etc.)

Answer 11

Axon

Question 12

What part of the neuron communicates from the brain/spinal cord to other parts os the body

Answer 12

Axon

Question 13

What part of the neuron gathers info from other structures back to the neuron?

Answer 13

Dendrites

Question 14

The part,of the neuron that is similar to any other cells in the body and contains a nucleus, and organelles such as lysosomes, mitochondria, and Golgi complex.

Answer 14

Cell body

Question 15

There are 3 main functional classifications of neurons that are determined by the direction of their impulses. What are they?

Answer 15

Sensory (afferent)
Interneuron
Motor (efferent)

Question 16

Which neuron transmits impulses from effector sites ( muscles and organs) to the brain/spinal cord?

Answer 16

Sensory neuron (afferent)

Question 17

Which neuron transmits nerve impulses to other neurons?

Answer 17

Interneuron (efferent)

Question 18

Which neuron transmits impulses from the brain/spinal cord to effector sites such as muscles or glands?

Answer 18

Motor neuron

Question 19

Describe the central nervous system.

Answer 19

It is comprised of the brain and spinal cord and serves mainly to interpret info.

Question 20

The nervous system is comprised of 2 interdependent division, what are they?

Answer 20

Central nervous system

Peripheral nervous system

Question 21

Describe the peripheral nervous system ( not the function).

Answer 21

Consist of cranial and spinal nerves spread throughout the body

Question 22

What are the 2 main functions of the peripheral nervous system?

Answer 22

Relays info from body organs to the brain, and from the brain to body organs.

Question 23

What are mechanoreceptors?

Answer 23

Sensory receptors, responsible for sensing distortion in body tissue.

Question 24

Name 3 types of mechanoreceptors.

Answer 24

Muscle spindle Golgi tendon organs Joint receptors

Question 25

Mechanoreceptors sense what type of tissue distortion?

Answer 25

Compression | Traction tension

Question 26

Describe muscle spindles.

Answer 26

A major sensory organ of the muscle, Fibers sensitive to change in length of the muscle and the rate of that change.

Question 27

How do Muscle spindles prevent injury?

Answer 27

It contract to prevent muscles from being stretched to fast and too long.

Question 28

Where are the Golgi Tendon organs located?

Answer 28

Where the muscle and tendon meet musculotendinous junction.

Question 29

Which mechanoreceptors is sensitive to muscular tension and rate of tension change?

Answer 29

Golgi tendon organ

Question 30

How does the Golgi tendon organ prevent injury?

Answer 30

When excited it causes the muscle to relax preventing it from being placed under excessive stress.

Question 31

Where are joint receptors located?

Answer 31

In and around the joint capsule

Question 32

What kind of tissue stress do joint receptors respond to?

Answer 32

Pressure Acceleration Deceleration

Question 33

How do joint receptors prevent injuries?

Answer 33

By responding to extreme joint positions, they also initiate a reflexive inhibitory response in surrounding muscle if too much stress is placed on a joint.

Question 34

Which mechanoreceptors initiates a reflective inhibitory response in surrounding muscle if there is too much stress placed on the joint?

Answer 34

Joint receptor

Question 35

All movement is DICTATED by the ...

Answer 35

Nervous system