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Without melanocytes, skin would

Not tan

Which of the following is a function of skin?

All of these are correct

Fluid balance is a primary goal of which system?


Which system helps control pH balance?

B and C (respiratory and urinary)

The correct order for homeostatic processing is

Sensory detection, control center, effect brings about change in body

Which allows rapid change in one direction and does not achieve stability?

Positive feedback

Which of the following is an example of negative feedback?

Insulin decreases blood sugar levels after eating a meal

Which of the following is a structural difference between the urinary systems of males and females

All of these

Which part of a nephron is out of sequence?

Distal convoluted tubule

When tracing the path of filtrate, the loop of the nephron follows which structure?

Proximal convoluted tubule

The function of the descending limb of the loop of nephron in the process of urine formation is

Reabsorption of water

Which of the following materials would not normally be filtered from the blood at the glomerulus


Reabsorption of the glomerular filtrate occurs primarily at the

Proximal convoluted tubule

Which of these hormones is most likely to directly cause a drop in blood pressure?

Atrial natriuretic hormone

The presence of ADH (antidiuretic hormone) causes an individual to excrete

Less water

To lower blood acidity

Hydrogen ions are excreted, and bicarbonate ions are excreted

Which of the following cerebral areas is not correctly matched with it's function?

Temporal lobe-primary motor area

The hypothalamus does not

Control skeletal muscles

Which of the following brain regions is not correctly matched to its function?

thalamus-secretes melatonin that regulates daily body rhythms

A spinal nerve takes nerve cells

Both to and away from CNS

Which of these are the first and last elements in a spinal reflex?

Sensory receptor and muscle effecter

The autonomic systej has two divisions called the...

sympathetic and parasympathetic divisions

The sympathetic division of the autonmoic system does not cause

The gastrointestial tract to digest food

Which of these associations are mismatched?

Vasa deferentia-seminal fluid production

Follicle-stimulating hormone (FSH)

Both B and C

Int racing the path of sperm, you would mention the vasa deferentia before the


Semen does not contain


The scrotum is

Important in regulating the temperature of the testes

Testosterone is produced and secreted by

Interstitial cells

Luteinizing hormone in males

Controls testosterone production by interstitial cells

Secondary sex characteristics are

those characteristics that develop after puberty

The release of the oocyte from the follicle is caused by

A surge in the level of luteinizing hormone

Which of the following is not an event of the ovarian cycle?

The endometrium thickens

An oocyte is fertilized in the


Following implantation, the corpus luteum in maintained by

human chorionic gonadotopin

During pregnancy

The ovarian and uterine cycles do not occur

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