Ch. 12 & 17 lab book
Which of the following statements regarding glands is NOT true?
Exocrine glands are also referred to as ductless glands.
Which of the following statements regarding glucagon is NOT true?
Glucagon works through the liver to lower blood glucose level.
Which of the following statements regarding diabetes mellitus is NOT true?
Hypoparathyroidism may cause diabetes mellitus
Which of the following is NOT a treatment for type 2 diabetes mellitus?
Insulin administration
Which of the following statements regarding insulin is NOT true?
Insulin is secreted by the alpha cells of the pancreas
Which of the following is not true of type 1 diabetes mellitus?
It accounts for 85-90% of all cases of diabetes mellitus
What is true of a mixed nerve?
It contains both afferent and efferent axons.
Which of the following is not true of the hormone insulin?
It inhibits protein synthesis and fat storage.
Which of the following statements regarding insulin- dependent diabetes mellitus is NOT true?
It is also called Type 2 diabetes mellitus.
Net movement of this ion is primarily associated with repolarization.
K +
which of the following statements regarding mineralocorticoid hormones is NOT true?
Mineralocorticoids regulate carbohydrate metabolism in the body.
Which of the following statements regarding the parathyroid glands is NOT true?
Parathyroid hormone stimulates bone to absorb more calcium from the bloodstream
Which of the following conditions is caused by hypersecretion of parathyroid hormone?
Recklinghausen disease
A demyelinating disease affects ______
Schwann cells
The formation of myelin in the peripheral nervous system is accomplished by these cells.
Schwann cells
Which of the following statements regarding the testes or its hormone is NOT true?
Testes are the male gamete.
Which of the following statements regarding the pineal gland or its hormone is NOT true?
The pineal gland is found in the hypothalamus region of the brain.
Which of the following statements regarding the thymus gland or its hormone is NOT true?
The thymus gland is located in the mediastinum just below the heart.
What is the function of pancreatic polypeptide?
To inhibit somatostatin and digestive enzyme secretion
What is true about tracts and nerves?
Tracts lack connective tissue coverings.
An action potential results from ________.
a change in the permeability of the neuron to Na + followed by a change in the permeability to K +
The adrenal gland is divided into:
a medulla and cortex
An action potential is ________
a rapid depolarization and repolarization of the cell membrane that is propagated
Which of the following conditions is characterized by an enlargement of the bones of the head and extremities?
acromegaly
Gynecomastia may be a symptom of:
adrenal feminization
Which of the following conditions occurs when there is an increase in estrogen secretion by the adrenal cortex of men?
adrenal feminization
You have lost the sensation, but not movement, in one of your hands due to a problem with your spinal cord neurons. Based upon these symptoms, what type of neuron was most likely affected?
afferent neuron
Which hormone promotes the kidneys to reabsorb water?
antidiuretic hormone
The 4 types of secretory cells in the pancreatic islets are not present in the equal percentages. Which of the following represents the correct approximate percentages for the 4 types of islet cells?
80% beta cells, 15% alpha cells, 5% delta cells, <1% F cells
Which of the following hormones is not secreted by the pancreas?
All of these hormones are secreted by the pancreas.
Which of the following is not an expected behavioral change in a fish in insulin shock?
Decreased gill movements
What is secreted by the pancreatic acini?
Digestive enzymes
These support cells are found in the central nervous system.
astrocytes and ependymal cells
this part of the neuron generates and conducts action potentials.
axon
During depolarization, the membrane potential is ________.
becoming more positive
This type of sensory neuron is quite rare.
bipolar
Which of the following hormones is secreted by the ovaries?
both A and C
Which of the following hormones is secreted by the posterior pituitary?
both A and C
At an axon terminal, the electrical signal from one cell _______
causes the release of chemical neurotransmitter molecules that cause an electrical signal in the next cell
Axons give rise to branches called _____
collaterals
A nerve ________.
consists of axons wrapped in connective tissue in the PNS
Which of the following hormones is responsible for regulating carbohydrate metabolism in the body?
cortisol
Gynecomastia is the:
development of breast tissue in a male
which of the following statements regarding endocrine glands is NOT true?
endocrine glands secrete hormones into ducts.
Which of the following hormones is critical in emergency situations?
epinephrine
Which of the following hormones is secreted by the adrenal medulla?
epinephrine
Which of the following is NOT one of the families of hormones secreted by the adrenal cortex?
epinephrine's
The outermost connective tissue covering of a nerve is called the _______
epineurium
Which of the following hormones is responsible for the regulation of the menstrual cycle?
estrogen
Which term refers to bulging eyeballs?
exophthalmos
Cells that lack insulin receptors cannot use glucose as an energy source.
false
Diabetes insipidus is a form of diabetes mellitus.
false
Insulin shock can occur when a person with type 1 diabetes mellitus eats a high-carbohydrate meal, but forgets to take insulin.
false
While a person is sleeping or between meals, blood glucose decreases and insulin level increases.
false
Which of the following hormones is a gonadotropin?
follicle- stimulating hormone
Which of the following hormones is responsible for stimulating the development of ova and sperm?
follicle- stimulating hormone
A cluster of neurons in the peripheral nervous system is called a ________
ganglion
an enlargement of the thyroid gland is called:
goiter
Which anterior pituitary hormone is also called somatotropin?
growth hormone
Which hormone is responsible for stimulating the cells of the body to rapidly divide?
growth hormone
Which of the following terms is a symptom of adrenal feminization?
gynecomastia
Which of the following is NOT a potential complication of diabetes mellitus?
hirsutism
Which of the following terms refers to having an excessive amount of hair?
hirsutism
Which of the following terms means excessive calcium in the blood?
hypercalcemia
All of the following are possible symptoms of insulin shock except
hyperglycemia
Which of the following terms means excessive potassium in the blood?
hyperkalemia
Cushing's syndrome is caused by:
hypersecretion of the adrenal cortex
graves' disease is caused by:
hypersecretion of the thyroid
Which of the following terms means insufficient sugar in the blood?
hypoglycemia
Which of the following terms means insufficient sodium in the blood?
hyponatremia
addison's disease is caused by:
hyposecretion of the adrenal cortex
Diabetes insipidus is caused by:
insufficient antidiuretic hormone
Myelin is important in ______
insulating axons and increasing the conduction velocity of action potentials
The thyroid gland uses which of the following elements to make its hormones?
iodine
Which of the following is NOT an endocrine gland?
lymph gland
Interneurons (association neurons) in the brain are likely to be ________ neurons.
multipolar
The gaps in the sheath that insulates axons are called ________.
myelin sheath gaps
These nervous system cells are highly specialized to transmit messages throughout the body.
neurons
Which of the following glands is both an endocrine and an exocrine gland?
pancreas
Which of the following glands is NOT regulated by an anterior pituitary hormone?
pineal
Calcitonin works to:
regulate calcium levels in the body
Thyroxine and triiodothyronine work to:
regulate the body's metabolic rate
Oligodendrocytes form myelin around ________
several axons in the central nervous system
The nerve irritability and muscle cramps that develop as a result of hypoparathyroidism is called:
tetany
The expression "all- or- none" means that ________.
the action potential in a neuron always has the same shape and size (amplitude)
Which of the following hormones is NOT secreted by the thyroid gland?
thyroid- stimulating hormone
A bundle of axons in the CNS is called a ________
tract
Normal or even higher than normal levels of insulin can be found in a person with type 2 diabetes mellitus.
true
The primary source of cellular energy (fuel) is glucose.
true
Functional classification of neurons is based on _________.
whether the signal carried is traveling toward or away from the CNS