Chapter C1. L’organizzazione corporea e l’omeostasi #108775

Neurons

The main part of a neuron that conducts nerve impulses is the

A:

astrocyte.

B:

axon.

C:

cell body.

D:

dendrite.

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Animal organization

A grouping of similar cells that perform a specific function is called a

A:

sarcoma.

B:

membrane.

C:

tissue.

D:

None of these are correct.

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Microvilli

The microvilli on the cells lining the small intestine are adaptations to promote

A:

absorption.

B:

digestion.

C:

movement.

D:

secretion.

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Muscles

Which characteristic is true of both cardiac and skeletal muscle?

A:

striated

B:

single nucleus per cell

C:

multinucleated cells

D:

involuntary control

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Negative feedback

Which of the following is an example of negative feedback?

A:

Air conditioning goes off when room temperature lowers.

B:

Insulin decreases blood sugar levels as the day progresses.

C:

Heart rate lowers when blood pressure drops.

D:

All of these are examples of negative feedback.

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Tissues

Which tissue is more apt to line a space?

A:

epithelial tissue

B:

connective tissue

C:

nervous tissue

D:

muscular tissue

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Nervous tissue

Which is a true statement?

A:

Cell bodies are primarily located in the brain and spinal cord.

B:

Axons can be very long, even reaching the length of your leg.

C:

Nerve cells have no need of nutrients locked away in the brain as they are.

D:

All statements are incorrect.

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Epithelial tissue

Which of the following is a function of skin?

A:

temperature regulation

B:

protection against water loss

C:

collection of sensory input

D:

protection from invading pathogens

E:

All of these are correct.

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Fluid balance

Which of these body systems plays the biggest role in fluid balance?

A:

cardiovascular

B:

urinary

C:

digestive

D:

integumentary

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Homeostasis

Which of these body systems contribute to homeostasis?

A:

digestive and urinary systems

B:

respiratory and nervous systems

C:

nervous and endocrine systems

D:

immune and cardiovascular systems

E:

All of these are correct.

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