Functions of the nephron Flashcards

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1
Q

A)

Hey What is the liquid that collects in the Bowmans capsule?

A

Plasma minus blood proteins

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2
Q

D)

Tubular excretion occurs where?

A

At the distal convoluted tubule

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3
Q

Blood pressure is…

A

Very important

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4
Q

C)

Since the body cannot afford to lose all of its water, it must reabsorb into the…

A

Blood

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5
Q

The loop of Henle creates a high osmotic pressure in the….

A

Medulla

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6
Q

A)

First, blood enters the glomerulusWhich is surrounded by the Bowmans capsule. What occurs here?

A

Pressure filtration occurs

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7
Q

D)
Excess molecules in the blood such as H+ ions, histamine, penicillin and ammonia are secreted into it to be all from blood, they are for helping to…

A

Maintain homeostasis.

Helps maintains blood pH

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8
Q

B)

What occurs At the proximal convoluted tubule?

A

Selective reabsorption

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9
Q

C)

What is result from the process of re-absorption of water into the blood?

A

The negative ion (CI-) And water follows the sodium by osmosis, to even out electrical and concentration gradients

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10
Q

Water is reabsorbed along the…

A

Entire length of the nephron. Therefore urine is concentrated

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11
Q

What are the filter the blood components?

A

Water
Nutrients
Nitrogenous waste
Salt (ions)

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12
Q

When blood pressure is too low and filtration does not occur, a hormone called ________ is released from a specialized tissue in the _________.

A

Rennin, Glomerulus.

This causes the constriction of the Glomerulus, thus, the blood pressure is increased to an adequate level

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13
Q

The fluid going up the distal side of the loop of Henle had a greater [____________ of wastes and little nutrient value

A

Concentration

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14
Q

What are the non-filtered blood components?

A

Formed elements- (blood cells and nitrogenous wastes platelets)

Proteins

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15
Q

E)

Concentrated urine from the collecting tubule collect and go to the…

A

Renal pelvis

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16
Q

C)

During the reabsorption of water into the blood, the cells of the loop of the Henle actively pump…

A

NA+ out of the tubule and k+ into the nephron.

17
Q

What does not occur if blood pressure is too low?

A

Filtration will not occur

18
Q

The blood in the capillaries are __________ to the fluids in the fluids spaces.

A

Hypertonic

19
Q

B)

Selective reabsorption’s required nutrients,

A

glucose, amino acids, vitamins, minerals, salt molecules and some water are reabsorbed into the peritubular capillary network

20
Q

A)

Once pressure filtration occurs, water, nutrients and wastes enter the Bowmans capsule. What does not enter?

A

Large organic molecules do not enter they are filtered

21
Q

B)

Selective reabsorption requires…

A

ATP