Bio 169 Final exam Prep. 253 Questions
and Correct Answers With Complete
Verified Solution, 100% Correct.
2024/2025.
Erythropoietin
Is secreted by the kidney
The function of the pericardial fluid is to
reduce friction between the pericardial membranes
Match the type of chemical messenger with its description.
Autocrine: stimulates the cell that originally secreted it
Endocrine: secreted by glands and cells; acts upon distant target tissues
Paracrine: secreted by one cell; acts upon nearby cells
Neurotransmitter: secreted by neurons into a synaptic cleft
What is not an accurate description of the pituitary gland
It is divided functionally into the superior and inferior pituitary glands
Peripheral chemoreceptors
Are located in the aortic and carotid bodies
Match the type of pancreatic islet cell with the hormone it secretes
Beta cells: insulin
Alpha cells: glucagon
Delta cells: somatostatin
The chordae tendineae
Connect the cusps of the AV valves to the papillary muscles
Epinephrine
Causes vasodilation of coronary blood vessels
Which of the following would occur as a result of increased renin release by the kidneys
an increase in blood volume
The axons of the neurosecretory neurons extend through the infundibulum, forming the
hypothalamohypophysial tract
,Type AB blood
Has both A and B antigens on the red cells
When comparing cardiac muscle cells and skeletal muscle cells
action potentials are conducted from cell to cell only in cardiac muscle
Match the items in the left column with the correct answers on the right column
Secretions travel in the bloodstream: Endocrine system
Secretions travel through ducts: Exocrine system
Testosterone: example of endocrine secretion
Digestive enzymes: example of exocrine secretion
The valve located between the right ventricle and the pulmonary trunk is the
pulmonary semilunar valve
Resistance to blood flow is greatest in
arterioles
Why would a person have anti-Rh antibodies present in their blood
an Rh-negative woman is carrying an Rh-positive fetus.
Which is not a way that parathyroid hormone affects calcium levels in the blood
Increases blood phosphate levels
Stroke volume is increased by
increased venous return
Indicate which pair of hormones act antagonistically to one another
insulin and glucagon
The posterior pituitary secretes
Neurohormones
John is taking a run before getting ready for work. Even though it's before breakfast, his energy levels
remain steady as his body responds to maintain blood glucose levels. Which of the following is not
occurring during his run?
Sympathetic stimulation causes an increase in insulin secretion
If a diseased thyroid gland was unable to produce normal levels of TH, which of the following may
result?
Secretion of TSH would increase.
The oxygenated form of hemoglobin is called
, oxyhemoglobin
During the isovolumetric contraction period of the cardiac cycle,
AV and semilunar valves are closed
If cortisol levels increase above homeostatic levels, which of the following would occur
ACTH levels will decline due to negative feedback inhibition
Match the chemical messenger with its function
Endorphins: reduction of pain sensation
Prostaglandins: inflammation; uterine contractions
Interleukin-2: stimulation of cell division of T lymphocytes
Epidermal growth factor: stimulation of cell division
Indicate the type of drug described
The drug in asthma inhalers binds to epinephrine receptors, stimulates the relaxation of the smooth
muscle in the lung airways: agonist
A drug prevents platelet aggregation by binding to epinephrine receptors on platelets and inhibits their
normal action: antagonist
The ability of white blood cells to leave the circulation and enter tissues is called
diapedesis
What condition may be the cause of hyperglycemia, depressed immune system, and redistribution of
fats from limbs to the face, neck, and abdomen
Cushing syndrome
During exercise, the oxygen-hemoglobin dissociation curve
Shifts to the right
Ventilation refers to the
movement of air into and out of the lungs
Cytotoxic T cells
attach to the surface of cells causing them to lyse.
The lymphatic system plays a role in maintaining fluid balance within the body by
returning interstitial fluid to the blood
Gas exchange between the air in the lungs and the blood takes place in the
alveoli
Cells that process antigen and present antigens to other immune cells are called ______ cells
and Correct Answers With Complete
Verified Solution, 100% Correct.
2024/2025.
Erythropoietin
Is secreted by the kidney
The function of the pericardial fluid is to
reduce friction between the pericardial membranes
Match the type of chemical messenger with its description.
Autocrine: stimulates the cell that originally secreted it
Endocrine: secreted by glands and cells; acts upon distant target tissues
Paracrine: secreted by one cell; acts upon nearby cells
Neurotransmitter: secreted by neurons into a synaptic cleft
What is not an accurate description of the pituitary gland
It is divided functionally into the superior and inferior pituitary glands
Peripheral chemoreceptors
Are located in the aortic and carotid bodies
Match the type of pancreatic islet cell with the hormone it secretes
Beta cells: insulin
Alpha cells: glucagon
Delta cells: somatostatin
The chordae tendineae
Connect the cusps of the AV valves to the papillary muscles
Epinephrine
Causes vasodilation of coronary blood vessels
Which of the following would occur as a result of increased renin release by the kidneys
an increase in blood volume
The axons of the neurosecretory neurons extend through the infundibulum, forming the
hypothalamohypophysial tract
,Type AB blood
Has both A and B antigens on the red cells
When comparing cardiac muscle cells and skeletal muscle cells
action potentials are conducted from cell to cell only in cardiac muscle
Match the items in the left column with the correct answers on the right column
Secretions travel in the bloodstream: Endocrine system
Secretions travel through ducts: Exocrine system
Testosterone: example of endocrine secretion
Digestive enzymes: example of exocrine secretion
The valve located between the right ventricle and the pulmonary trunk is the
pulmonary semilunar valve
Resistance to blood flow is greatest in
arterioles
Why would a person have anti-Rh antibodies present in their blood
an Rh-negative woman is carrying an Rh-positive fetus.
Which is not a way that parathyroid hormone affects calcium levels in the blood
Increases blood phosphate levels
Stroke volume is increased by
increased venous return
Indicate which pair of hormones act antagonistically to one another
insulin and glucagon
The posterior pituitary secretes
Neurohormones
John is taking a run before getting ready for work. Even though it's before breakfast, his energy levels
remain steady as his body responds to maintain blood glucose levels. Which of the following is not
occurring during his run?
Sympathetic stimulation causes an increase in insulin secretion
If a diseased thyroid gland was unable to produce normal levels of TH, which of the following may
result?
Secretion of TSH would increase.
The oxygenated form of hemoglobin is called
, oxyhemoglobin
During the isovolumetric contraction period of the cardiac cycle,
AV and semilunar valves are closed
If cortisol levels increase above homeostatic levels, which of the following would occur
ACTH levels will decline due to negative feedback inhibition
Match the chemical messenger with its function
Endorphins: reduction of pain sensation
Prostaglandins: inflammation; uterine contractions
Interleukin-2: stimulation of cell division of T lymphocytes
Epidermal growth factor: stimulation of cell division
Indicate the type of drug described
The drug in asthma inhalers binds to epinephrine receptors, stimulates the relaxation of the smooth
muscle in the lung airways: agonist
A drug prevents platelet aggregation by binding to epinephrine receptors on platelets and inhibits their
normal action: antagonist
The ability of white blood cells to leave the circulation and enter tissues is called
diapedesis
What condition may be the cause of hyperglycemia, depressed immune system, and redistribution of
fats from limbs to the face, neck, and abdomen
Cushing syndrome
During exercise, the oxygen-hemoglobin dissociation curve
Shifts to the right
Ventilation refers to the
movement of air into and out of the lungs
Cytotoxic T cells
attach to the surface of cells causing them to lyse.
The lymphatic system plays a role in maintaining fluid balance within the body by
returning interstitial fluid to the blood
Gas exchange between the air in the lungs and the blood takes place in the
alveoli
Cells that process antigen and present antigens to other immune cells are called ______ cells
