Phys 2 Exam 3 Review Flashcards

1
Q

What system does the following functions:

  • regulates blood volume
  • contributes to stabilizing blood pH
  • eliminates nitrogenous waste products
A

Urinary system

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2
Q

Which part of the nephron is impermeable to water?

A

Ascending limb of the loop of henle

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3
Q

What two organs produce substances for fat digestion?

A
  • pancreas

- liver

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4
Q

Chyme is created in which digestive organ?

A

Stomach

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5
Q

Which cells in the stomach secrete hydrochloric acid?

A

Parietal cells

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6
Q

What enzyme helps digest complex carbohydrates?

A

Amylase

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7
Q

What hormone is released by the duodenum in response to lipids entering?

A

Cholecystikinin (CCK)

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8
Q

What enzyme is specific for proteins?

A

Trypsin

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9
Q

Absorption of water is one of the main functions of the ____ intestine

A

Large

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10
Q

What hormone is produced in the S cells of the duodenum and is released upon the arrival of chyme to stimulate secretion by the liver and pancreas?

A

Secretin

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11
Q

What is the role of the pancreatic acini?

A

Secrete digestive enzymes

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12
Q

___ carry absorbed fats to the lymphatic system

A

Lacteals

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13
Q

What enzyme breaks down fats?

A

Lipase

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14
Q

Tiny weights necessary for the sense of equilibrium

A

Otoliths

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15
Q

Which layer within the eye is responsible for absorption of stray light?

A

Pigmented layer

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16
Q

Altering the shape of the eye’s lens is known as _____

A

Accommodation

17
Q

When a ___ is stimulated by light, the enzyme phosphodiesterase (PDE) is activated

A

Rod

18
Q

In the retina, the pigment epithelial cells contain the pigment ____

A

Melanin

19
Q

The brain’s ability to perceive contrast at edges and borders is known as:

A

The “on/off” signal transduction

20
Q

____ cells are the only type of sensory cell that is relatively depolarized at rest

A

Photoreceptor