Various conditions are associated with aging.
Which condition is characterized by decreased mental functions and loss of memory?
•
Senescence
•
Alzheimer's disease
•
Menopause
•
Andropause
2
Which of
...
Various conditions are associated with aging.
Which condition is characterized by decreased mental functions and loss of memory?
•
Senescence
•
Alzheimer's disease
•
Menopause
•
Andropause
2
Which of the following is an agent of chemical digestion in the mouth?
•
Teeth
•
Salivary amylase
•
Bolus
•
Chyme
3
Which of the following is associated directly with the endocrine system?
•
Lymph nodes
•
Phagocytes
•
Skeletal muscle
•
Hormones
4
An individual's blood volume and blood pressure decrease.
Which of the following will be the body's response to maintain homeostasis and increase the blood volume and blood pressure?
•
ADH is released, less water is reabsorbed, the urine becomes more diluted
•
ADH is released, less water is reabsorbed, the urine becomes more concentrated
•
ADH is released, the kidneys conserve water, the urine becomes more diluted
•
ADH is released, the kidneys conserve water, urine becomes concentrated
5
Select the correct route of sperm once they are produced.
•
Penis → Testes → Urethra → Epididymis → Ejaculatory duct → Vas deferens
•
Testes → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Penis
•
Penis → Urethra → Ejaculatory duct → Vas deferens → Epididymis →Testes
•
Testes → Penis → Epididymis → Urethra → Vas deferens → Ejaculatory duct
6
Which organ of the endocrine system is part of the brain?
•
Pancreas
•
Pineal gland
•
Parathyroid gland
•
Adrenal gland
7
Which of the following is most likely the cause of Graves' disease?
•
Lower than normal levels of parathyroid hormone in the blood
•
Higher than normal levels of thyroid hormones in the blood
•
Lower than normal levels of thyroid hormones in the blood
•
Higher than normal levels of parathyroid hormone in the blood
8
Which of the following statements about brush cells is true?
•
They are composed of villi, which are themselves composed of microvilli.
•
They are found on the microvilli and have villi on them.
•
They are found on the villi and have microvilli on them.
•
They are a part of the lumen that removes harmful substances.
9
After fertilization, the newly formed zygote begins to divide into multiple cells through a process called __________.
•
Cleavage
•
Blastomere
•
Morphogenesis
•
Gastrulation
10
In which step of urine formation is the glomerulus involved?
•
Secretion
•
Filtration
•
All three
•
Reabsorption
11
Which of the following statements about secondary messengers is true?
•
They are a third type of hormone, although they differ significantly from the other two.
•
They carry out the effects of steroid hormones within the cell.
•
They work with both steroid and non-steroid hormones to carry out their effects in the cell.
•
They carry out the effects of non-steroid hormones within the cell.
12
Which of these is a glucocorticoid secreted by the adrenal cortex?
•
Norepinephrine
•
Aldosterone
•
Epinephrine
•
Cortisol
13
Which hormone, released during the menstrual cycle, prepares the endometrium for implantation?
•
Growth hormone
•
Thyroid stimulating hormone
•
Estrogen
•
Prolactin
14
A woman in labor is giving birth to a baby feet first, or in breech.
What should the doctor do?
•
Cut the umbilical cord.
•
Turn the baby around.
•
Push the baby back into the uterus.
•
Pull the baby out of the mother's body.
15
Which organ stores bile?
•
Gallbladder
•
All three
•
Pancreas
•
Liver
16
Where does digestion begin?
•
The stomach
•
The large intestine
•
The mouth
•
The small intestine
17
Which part of the kidney does the actual filtering of the blood?
•
Nephrons
•
Renal cortex
•
Renal pelvis
•
Renal medulla
18
Which of these describes the endometrium?
•
The tube connecting the ovary to the uterus
•
The site of oogenesis
•
The external orifice of the uterus
•
The inner lining of the uterus
19
What happens when blood is too acidic?
•
Nothing, blood is supposed to be acidic.
•
More bicarbonate is released into the bloodstream.
•
More hydrogen ions are released.
•
Less bicarbonate is released into the bloodstream.
20
Which part of the large intestine helps fight parasites that have survived the previous digestive tract?
•
Appendix
•
All parts of the large intestine
•
Rectum
•
Colon
21
Which type of pancreatic cells help to raise blood sugar?
•
Alpha cells
•
Gamma cells
•
Delta cells
•
Beta cells
22
A woman has had a miscarriage; what happened to her fetus?
•
It was implanted too firmly in the uterus.
•
It was underdeveloped.
•
It was spontaneously expelled from the uterus.
•
It was overdeveloped.
23
Which layer of the digestive tract contains blood vessels and nerve cells?
•
Submucosa
•
Mucosa
•
Lumen
•
Serosa
24
Which type of digestion occurs in the stomach?
•
Mechanical
•
Chemical
•
Both mechanical and chemical
•
Neither mechanical nor chemical
25
Which of the following structures connects a developing child to the placenta?
•
Umbilical cord
•
Chorion
•
Amnion
•
Yolk sac
26
Which type of cells are responsible for the growth of facial hair and the deepening of the voice in males during puberty?
•
Leydig cells
•
Sertoli cells
•
Stem cells
•
Schwann cells
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