IvyTech APHY 102 Midterm Exam
Questions And Answers Verified 100%
Correct
A night shift worker experiences extreme difficulty falling asleep due to being
exposed to bright lights during both night and day. The unusual pattern of light
exposure is disturbing their _________________ , which controls the release of the
hormone ______________. - ANSWER -circadian rhythm; melatonin
Capillary walls consist of a single layer of epithelial cells and they exchange
substances in the blood for substances in the tissue fluid surrounding body cells. -
ANSWER -True
Kidney disease can cause hypertension by - ANSWER -activating the renin
angiotensin mechanism
Target cells for releasing hormones are in the - ANSWER -anterior pituitary gland
From the collecting ducts, lymph enters ______________ and becomes part of the
________________. - ANSWER -veins; plasma
Which of the following lists best illustrates the idea of increasing levels of
complexity? - ANSWER -Organelles, cells, tissues, organs, organ systems.
The red blood cells of type AB blood have on their surfaces - ANSWER -antigens
A and B
The pulmonary circuit - ANSWER -sends oxygen-poor blood to the lungs.
Arteries are strong, elastic vessels that carry blood to the heart. - ANSWER -False
, Which of the following has both endocrine and exocrine functions? - ANSWER -
pancreas
doctors suggest that during long periods of sitting, you should flex and extend
your feet at the ankles periodically and squeeze your calf muscles to assist with
blood circulation. Why would non-exercise muscle contraction affect blood flow
and cardiovascular health? - ANSWER -Contraction of the leg muscles squeezes
leg veins, which functions as a pumping mechanism to return deoxygenated blood
to the heart.
which of the following illustrates a positive feedback mechanism? - ANSWER -
Uterine contractions during childbirth.
Hematocrit is - ANSWER -the percentage of red blood cells in a blood sample.
A red blood cell contains a large nucleus; it is thicker near the center and thin
around the rim of the cell. - ANSWER -False
which of the following is NOT an example of a negative homeostatic mechanism
in the human body? - ANSWER -Retention of fluid leading to retention of more
fluid.
The removal of wastes produced by metabolic reactions is - ANSWER -excretion
Circulation is vital because it - ANSWER -supplies oxygen and nutrients to and
removes wastes from tissues.
Innate defenses include mechanical and chemical barriers, whereas adaptive
defenses counter specific disease-causing agents. - ANSWER -True
Lymphatic capillaries are thin-walled, closed-ended tubes - ANSWER -True
What are pathogens - ANSWER -disease causing agents
Questions And Answers Verified 100%
Correct
A night shift worker experiences extreme difficulty falling asleep due to being
exposed to bright lights during both night and day. The unusual pattern of light
exposure is disturbing their _________________ , which controls the release of the
hormone ______________. - ANSWER -circadian rhythm; melatonin
Capillary walls consist of a single layer of epithelial cells and they exchange
substances in the blood for substances in the tissue fluid surrounding body cells. -
ANSWER -True
Kidney disease can cause hypertension by - ANSWER -activating the renin
angiotensin mechanism
Target cells for releasing hormones are in the - ANSWER -anterior pituitary gland
From the collecting ducts, lymph enters ______________ and becomes part of the
________________. - ANSWER -veins; plasma
Which of the following lists best illustrates the idea of increasing levels of
complexity? - ANSWER -Organelles, cells, tissues, organs, organ systems.
The red blood cells of type AB blood have on their surfaces - ANSWER -antigens
A and B
The pulmonary circuit - ANSWER -sends oxygen-poor blood to the lungs.
Arteries are strong, elastic vessels that carry blood to the heart. - ANSWER -False
, Which of the following has both endocrine and exocrine functions? - ANSWER -
pancreas
doctors suggest that during long periods of sitting, you should flex and extend
your feet at the ankles periodically and squeeze your calf muscles to assist with
blood circulation. Why would non-exercise muscle contraction affect blood flow
and cardiovascular health? - ANSWER -Contraction of the leg muscles squeezes
leg veins, which functions as a pumping mechanism to return deoxygenated blood
to the heart.
which of the following illustrates a positive feedback mechanism? - ANSWER -
Uterine contractions during childbirth.
Hematocrit is - ANSWER -the percentage of red blood cells in a blood sample.
A red blood cell contains a large nucleus; it is thicker near the center and thin
around the rim of the cell. - ANSWER -False
which of the following is NOT an example of a negative homeostatic mechanism
in the human body? - ANSWER -Retention of fluid leading to retention of more
fluid.
The removal of wastes produced by metabolic reactions is - ANSWER -excretion
Circulation is vital because it - ANSWER -supplies oxygen and nutrients to and
removes wastes from tissues.
Innate defenses include mechanical and chemical barriers, whereas adaptive
defenses counter specific disease-causing agents. - ANSWER -True
Lymphatic capillaries are thin-walled, closed-ended tubes - ANSWER -True
What are pathogens - ANSWER -disease causing agents
