Homeostasis and Senses

Question 1

What are the lobe of the brain

Answer 1

Frontal, parietal, temporal and occipital

Question 2

What is the frontal lobe responsible for

Answer 2

decision making and planning

Question 3

the ability to perform complex tasks is due to what brain lobe

Answer 3

parietal lobe

Question 4

processing sounds is a function of what lobe

Answer 4

temporal lobe

Question 5

the occipital lobe is responsible for

Answer 5

processing visual info

Question 6

Why is white matter white

Answer 6

myelinated glial cells on axons

Question 7

What matter is mostly made of packed neuron cell bodies and dendrites

Answer 7

gray matter

Question 8

What is homeostasis

Answer 8

internal functions that keep our bodies stable

Question 9

what is a neuron

Answer 9

basic function of nervous system. they have electrical properties and are used for communication

Question 10

animals sensory detectors can detect which of the following

Answer 10

chemical
physical
electromagnetic
all of the above

Question 11

what purpose do interconnected cells have

Answer 11

they come together to make networks which then can be used by the animal to detect environmental responses

Question 12

explain neuron organziation

Answer 12

dendrites -> soma/cell body -> nucleus -> axon hillock -> axon (where action potential occurs) -> axon terminal -> presynaptic cell -> synaptic cleft -> post synaptic cell

Question 13

T/F the inside of a cell at rest is +ve in relation to the outside

Answer 13

F. there is an overall negative charge with a negative resting membrane potential (negative voltage)

Question 14

Where can you find interneurons

Answer 14

spinal cord (grey matter)

Question 15

What neuron would be located in a muscle

Answer 15

motor

Question 16

what neurons would be located in the dorsal root ganglia

Answer 16

sensory

Question 17

Name the three types of neurons

Answer 17

sensory, motor and interneuron

Question 18

describe an action potential

Answer 18

1.) resting potential (-70)
2.) summed input/stimulus depolarizes cell membrane in the axon hillock
3.) excitation threshold is reached
4.)
voltage-gated Na+ channels open. Spike in membrane potential (K+ channels opens slower) (+50/+40)
5.) Na+ channels close, K+ channels continue to stay open
6.) hyperpolarization (influx of K+)
5.) adjustment to reach cell equilibrium

Question 19

What are astrocytes

Answer 19

specialized glial cells in blood-brain barrier

Question 20

What is a glial cell

Answer 20

A non-electrical cell used as insulation and support to neurons

Question 21

A neuron moving towards the brain is a

Answer 21

afferent neuron, travelling via CNS

Question 22

efferent neurons go

Answer 22

to effector organs

Question 23

What two things integrate and process info in local regions

Answer 23

interneurons and ganglia (in local regions = CNS)

Question 24

What is the purpose of the autonomic nervous system

Answer 24

broken into sympathetic, parasympathetic and enteric nervous system. regulates digestive system (enteric system) and smooth muscles, cardiac muscles, exocrine glands and some endocrine glands (sympathetic and parasympathetic systems)

Question 25

Parasympathetic nervous system is known for it’s regulation of

Answer 25

rest + digest

Question 26

This nervous system is responsible for your flight/fight

Answer 26

sympathetic system

Question 27

An organism that adjusts to the environment to maintain body temperature is known as

Answer 27

Poikilotherms

Question 28

An organism that produces their own heat is known as

Answer 28

Endotherm

Question 29

An ectotherm regulates body temperature by

Answer 29

heat from environment

Question 30

This organism has a relatively constant body temperature no matter the environment

Answer 30

Homeotherm

Question 31

What are the three receptors found in animals

Answer 31

chemo, mechano and photo

Question 32

The section of the brain responsible for perception, memory and learning is the

Answer 32

cerebral cortex

Question 33

the section of the brain responsible for transmitting sensory info is the

Answer 33

thalamus

Question 34

the hypothalamus is responsible for

Answer 34

autonomic and enteric system

Question 35

the hindbrain is made up of

Answer 35

medulla, pons and cerebellum