Nervous system

Question 1

Structural unit of the nervous system that reacts to stimuli and transmits impulses to one another

Answer 1

Neurons

Question 2

Bundle of nerve fibers held together by connective tissues

Answer 2

Nerves

Question 3

Carries nerve impulses from brain to muscles of glands

Answer 3

Motor neuron

Question 4

Found in brain and spinal cord , communication in this region

Answer 4

Interneurons

Question 5

What are the two types of nerve fibers found on a neuron

Answer 5

Dendrites, axons

Question 6

which nerve fiber Connects with other neurons to receive info

Answer 6

Dendrites

Question 7

which nerve fiber Conducts impulses away from cell body

Answer 7

Axon

Question 8

Each anox splits into axon terminals which end with what?

Answer 8

Synaptic bulb

Question 9

What do the synaptic bulbs store and then release

Answer 9

neurotransmitters

Question 10

Junctions where impulses are passed from one nerve to the other

Answer 10

Synpases

Question 11

Cns consists of what?

Answer 11

The brain and spinal cord

Question 12

What is protected by the cranium

Answer 12

the brain

Question 13

Front and top part of the brain. Speech, sensaiton, reasoning, will, and emotions

Answer 13

The cerebrum

Question 14

Smaller part of brain located in the back. body balance, coordinates voluntary muscles and makes movement smooth

Answer 14

Cerebellum

Question 15

Located in middle of brain. Hypothalamus, thalamus, pineal and pituatary gland. Controls sensory info coming into brain, regulates endocrine, horomone glands

Answer 15

Diencephalon

Question 16

Midbrain, pons, Medulla oblongata make up what - control respiration rates and movement of heart

Answer 16

Brain stem

Question 17

What contains all nerves that contact the cns to the body. Sppinal nerves, cranial nerves, and all branches

Answer 17

PNS

Question 18

Autonomic nervous system consists of which two parts?

Answer 18

sympathetic/ parasympathetic

Question 19

how many pairs of cranial nerves

Answer 19

12

Question 20

how many pairs of spinal nerves

Answer 20

31

Question 21

Cervical plexus controls what

Answer 21

Neck, shoulders, head

Question 22

brachial plexus

Answer 22

lower neck and controls movement of arms

Question 23

Lumbar plexus

Answer 23

abdominal organs, hip, thigh, knee, and legs

Question 24

Sacral plexus

Answer 24

forms the sciatic nerve which is the largest and longest nerve in the body

Question 25

Which sensory receptor responds to touch, pressure, vibration, and stretch?

Answer 25

Mechanoceptors; ruffini end organs, pacini corpuscles, and merkel discs

Question 26

which sensory receptor responds to hot and cold in mouth and skin

Answer 26

Thermoreceptors

Question 27

which sensory receptor gives us the ability to see color and form. located in eyes

Answer 27

Photoreceptors

Question 28

which sensory receptor gives us sense of smell and taste and located in mouth and nose

Answer 28

Chemoreceptors

Question 29

which sensory receptor detects pain

Answer 29

Nociceptors

Question 30

nerves located throughout body and record heat pain cold and pressure

Answer 30

exteroceptors

Question 31

nerves located in muscle spindle cells, golgi tendon organs, and joints that sense where the body is and how it moves

Answer 31

proprioceptors

Question 32

which nervous system excites the fight or flight, increases respiration, heart rate, and cardiac output

Answer 32

The sympathetic nervous system

Question 33

which nervous system calms down, relaxes, and regulates homeostasis. reduces heart rate, respiration, blood pressure, increases digestion found in vagus nerve and spinal nerves

Answer 33

the parasympathic nervous system

Question 34

Routes that nerve impulses travel through which can be a reflex known as

Answer 34

Neural pathways / reflex arcs.

Question 35

ruffini end organs, pacini corpuscles, and merkel discs are

Answer 35

Mechanoceptors

Question 36

The part of the brain concerned with eye movement and tracking is the:

Answer 36

Midbrain