PERIPHERAL NERVOUS SYSTE.

Question 1

How many bones are in the cervical, thoracic, lumbar, sacrum, and coccyx?

Answer 1

Cervical - 7
Thoracic - 12
Lumbar - 5
Sacrum - 5, used
Coccyx - 3, fused

Question 2

The peripheral Nervous system is divided into 2 systems, namely:

Answer 2

Somatic Nervous System
Autonomic Nervous System

Question 3

In charge of voluntary body movements and transmits sensors messages to the central nervous system

Answer 3

Somatic Nervous System

Question 4

In charge of involuntary body functions

Answer 4

Autonomic Nervous System

Question 5

Parts of Autonomic Nervous System

Answer 5

Sympathetic
Parasympathetic

Question 6

Responsible for flight or fight response, stimulating body to use energy

Answer 6

Sympathetic

Question 7

Conserves energy, doing “Rest” or “Digest”

Answer 7

Parasympathetic

Question 8

Parts of somatic nervous system

Answer 8

Reflex
Reflex Arc

Question 9

Reflex

Answer 9

Involuntary response to a stimulus without input from the brain

Question 10

Reflex Arc

Answer 10

Pathway a reflex takes
Connects to the spinal chord, bypassing the brain so it is not delayex

Question 11

Pathway for Reflex Arc

Answer 11

Stimulus - Sensory Neuron - Motor Neuron - Reflex Muscle Movement

Question 12

Pulling hand back when touching something hot
Jumping when you hear a loud sound
Knee-jerk Reflex

Answer 12

Reflex Examples

Question 13

Reflex arcs that affect inner organs

Answer 13

Autonomic Reflex Arcs

Question 14

Reflex Arcs that affect muscles

Answer 14

Somatic Reflex Arcs

Question 15

Feedback mechanisms respond to changes by

Answer 15

Reducing or increasing the change to bring systems back to normal

Question 16

Increases the change; there will be more of a product or moving away from the target point

Answer 16

Positive Feedback

Question 17

It is less common than a negative feedback

Answer 17

Positive Feedback

Question 18

When response to a stimulus is increased, ____ feedback is happening

Answer 18

Positive Feedback

Question 19

Examples of positive feedback

Answer 19

Milk production
Blood clotting
Labor Contractions

Question 20

During labor, more of the hormone ____ is released to the cervix

Answer 20

Oxytocin

Question 21

High levels of ____ is produced to stimulate milk production

Answer 21

Prolactin

Question 22

Once wound is present, ___ is sent to form a clot

Answer 22

Platelets

Question 23

When a response to a stimulus is decreased

Answer 23

Negative Feedback

Question 24

Most of the body’s feedback mechanisms belong here

Answer 24

Negative Feedback

Question 25

Allows the body to stabilize back to homeostasis

Answer 25

Negative Feedback

Question 26

Examples of negative feedback

Answer 26

Temperature regulation Controlled blood glucose levels Regulated blood pressure

Question 27

What are the body's (skin & brain's) response to temperature rise?

Answer 27

Sweat & Blood levels near the skin dilate

Question 28

If blood pressure is too high

Answer 28

The heart is told to decrease heart rate

Question 29

If glucose levels are too high, ____ from the Pancreas is stimulated to absorb glucose and convert glucose to glycogen

Answer 29

Insulin

Question 30

As the blood glucose levels go down, ___ insulin is needed

Answer 30

Less insulin

Question 31

When glucose levels are too low, _____ is produced in order to convert glycogen back to glucose, increasing levels of glucose in the blood

Answer 31

Glucagon

Question 32

The ____ is like a bony helmet

Answer 32

Skull

Question 33

_____ are layers of tissue

Answer 33

Meninges

Question 34

A watery fluid that flows in and around the brain and the spinal chord that cushions both parts

Answer 34

Cerebrospinal fluid