🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
1
answer
0
watching
380
views
29 Jan 2019

The white matter largely consists of myelinated neurons.

True
False

What cells myelinate axons?

A. Microglia

B. Ependymal cells

C. Astrocytes

D. Schwann cells

What brain regions belong to the midbrain?

A. telencephalon

B. optic tectum

C. cerebrum

D. medulla oblongata

Watch
1
answer
0
watching
380
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Keith Leannon
Keith LeannonLv2
30 Jan 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

Question 1

Where is growth hormone produced?

Pituitary Gland

Kidneys

Pancreas

Thyroid

5 points

Question 2

Which neurotransmitter is linked to pleasure?

Acetycholine

Dopamine

Histamine

Epinephrine

5 points

Question 3

Which neurotransmitter is linked to OCD and depression?

Epinephrine

Acetylcholine

Dopamine

Serotonin

5 points

Question 4

Which part of the brain is linked to mystical experiences?

Right Temporal Lobe

Frontal Lobe

Occipital Lobe

Left Temporal Lobe

5 points

Question 5

Which coordinates and balances the action of muscles?

cerebrum

cerebellum

Medulla Oblongata

Spinal Cord

5 points

Question 6

What is the function of amylase?

Breaks down starches

Breaks down proteins

Breaks down fats

Breaks down triglycerides

5 points

Question 7

Where does most digestion occur?

large intestine

Stomach

Small intestine

Mouth

5 points

Question 8

Which vitamin in high dosages reduces pain?

B

C

A

D

5 points

Question 9

Which vitamin increases fertility?

A

B

C

E

5 points

Question 10

Which is not fat soluble?

A

B

E

K

5 points

Question 11

Which is not a component of the blood?

platelets

white blood cells

red blood cells

all are components of the blood.

5 points

Question 12

Protein digestion begins in the small intestine.

True

False

5 points

Question 13

What happens an instant before inhalation?

Lungs expand and pressure falls

Lungs expand and pressure increases

Lungs contract and pressure increases

Lungs contract and pressure decreases

5 points

Question 14

What is the correct sequence for digestion?

mouth-large intestine-stomach-small intestine

mouth-stomach-small intestine-large intestine

5 points

Question 15

Which is not part of a neuron?

cell body

axon

dendrite

All are parts.

5 points

Question 16

Which is true?

thick filaments are composed of actin

thin filaments are composed of myosin.

thick filaments are composed of myosin

thick filaments slide over thin filaments.

5 points

Question 17

Which hormone reduces testosterone levels?

Growth Hormone

Melatonin

Insulin

Thyroxin

5 points

Question 18

Which vessel(s) is the most oxygenated?

pulmonary veins

pulmonary arteries

aorta

hepatic artery

5 points

Question 19

You can make a person you know appear by stimulating a part of the brain with electricity.

True

False

5 points

Question 20

Einstein had a thicker corpus callosum than a normal person resulting in better communication between both sides of his brain.

True

False

11.Which sequence of events is required for the brain to interpret sound?
I. Vibration of the basilar membrane relative to the tectorial membrane causes cilia on hair cells to bend and triggers depolarization.

II. Hair cells stimulate the production of action potentials in sensory neurons that project to the brain.

III. Ganglion cell axons transmit action potentials to the occipital lobe.

A. II then I B.III then I then II. C.III then I D.I then II E.I then II then III

12. Which animal became numerous and widespread by using sonar to enable a high level activity in the dark?

A.bats B.whales C.owls D.dolphins E.shrews

13.In the vertebrate eye, what structure is light focused onto?

A.pupil B.lens C.retina D.sclera E.iris

14.Which is NOT a part of the vertebrate eye?

A. cornea B. retina C. iris D. cochlea E. pupil

15. In the vertebrate eye, what structure controls the amount of light that reaches the retina?
A. fovea. B. cornea. C. iris D. lens E. sclera

16.What are the short retinal photoreceptors responsible for color vision called?

A.rods B.cones C.bipolar cells. D.glial cells. E.ganglion cells

17. What sensory equipment is required for an animal to have binocular vision?

A.eyes located to the sides of the head B.forward-facing eyes C.a camera-type eye with multiple lenses

D. infrared vision E.ultraviolet vision

18. Choose the receptor that is NOT correctly matched with its function.

A.proprioceptor - monitors stretch of muscle fibers

B.baroreceptor - monitors hydrostatic pressure in blood vessels

C.nociceptor - transmits signals that the brain interprets as pain

D.chemoreceptor - perceives taste and smell stimuli

E.peripheral chemoreceptor - monitors the pH of the cerebrospinal fluid

19. Where is the visual image in focus for a nearsighted individual?

A.behind the retina B.in front of the retina C.on the retina, but it appears blurred

D.at the lens, forming a shadow on the retina E.on the retina, but it is upside down

20. Since the optic nerve must pass through the retinal layer, we all have a blind spot devoid of light receptors. This normally goes unnoticed, since the brain attempts to compensate for missing sensory information by filling it in based on surrounding patterns. Which step of the sensory pathway is represented by perceptual filling-in of the physiological blind spot?

A. interpretation B. stimulus. C. transduction into receptor potential D.action potential transmission

#1 Visceral sensory information enters the CNS on afferent fibers within

A) dorsal roots S_2 to S_4.

B) dorsal roots T_1 to L_2.

C) cranial nerves V, VII, IX, and X.

D) both B and C

E) A, B, and C

#2 Which of the following is not a function of the neuroglia?

A) support

B) memory

C) phagocytosis

D) secretion of cerebrospinal fluid

E) maintenance of blood-brain barrier

#3 Mary is in an automobile accident and suffers a spinal cord injury. She has lost feeling in her lower

body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of

her cord is likely to be compressed?

A) the anterior gray commissures

B) the anterior white commissures

C) the anterior gray horns

D) ascending tracts

E) descending tracts

#4 The efferent division of the peripheral nervous system innervates:

A) skeletal muscle cells

B) glandular cells

C) smoothmusdecells

D) heart muscle cells

E) all of the above

#5 Cerebrospinal fluid flows within the

A) pia mater.

B) dura mater.

C) filum terminale.

D) arachnoid mater.

E) subarachnoid space.

#6 A patient develops a tumor of a cranial nerve that leads to difficulty in speaking from a loss of

tongue movement.which cranial nerve is affected?

A) glossopharyngeal

B) vagus

C) spinal accessory

D) hypoglossal

E) trigeminal

#7 Parkinson disease is the result of

A) inadequate production of dopamine by substantia nigra neurons.

B) inadequate production of GABA by neurons in the basal nuclei.

C) weak response of the red nuclei of the mesencephalon.

D) decreased levels of acetylcholine from neurons in the substantia nigra.

E) hyperactivity of the limbic system.

#8 Based on the motor homunculus, which of the followingbody regions has the largest motor units?

A) larynx B) hands C) tongue D) face E) back

#9 If the corpus callosum is surgically cu!

A) conscious decisions are made without regard to sensations from the left side.

B) objects toudred by the left hand can be recognized but not verbally identified.

C) symptoms of the "disconnection syndrome" appear.

D) the two cerebral hemispheres operate independently.

E) all of the above

#10 The flexor reflex

A) moves a limb away from a painful stimulus.

B) is an example of a monosynaptic reflex.

C) prevents a musde from generating damaging tension.

D) usually depends on cranial neurons.

E) prevents a muscle from overstretching.

#11 The subdural space lies between

A) the dura mater and the arachnoid mater.

B) the arachnoid mater and the pia mater.

C) the endosteum and the periosteum.

D) the pia mater and the dura mater.

E) the pia mater and the subarachnoid space.

#12 _____ is a condition resulting from an inflammation of a facial nerve.

A) Cerebral palsy

B) Addison disease

C) Bell palsy

D) any of the

#12 Clusters of RER and free ribosomes in neurons are called

A) microglia.

B) neurofilaments.

C) neurofibrils.

D) Nisslbodies.

E) perikaryon.

Related Documents

BIO310H5 Lecture Notes - Lecture 4: Axial Skeleton, Schwann Cell, Ependyma
blushrat11
BIOS 2400 Lecture Notes - Lecture 7: Resting Potential, Myelin, Axon Hillock
aquamarinespider160
BIO403H5 Lecture Notes - Midbrain Tegmentum, Inferior Colliculus, Superior Colliculus
sangriatiger167

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in