QUESTIONS WITH OVER 162
QUESTIONS AND CORRECT
ANSWERS AND EXPLANATIONS
VERIFIED AND GRADED A+
What structure is responsible for the release of hormones that stimulate
the gonads during puberty?
A. hypothalamus
B. midbrain
C. basal ganglia
D. hippocampus
A. hypothalamus
The hypothalamus is a tiny gland at the abseils of the brain.
- It helps regulate temperature, sleep, emotions, sexual function and
behavior.
During puberty it secretes hormones that stimulate the gonads which
intimate sexual development.
Which of the following structures has the lowest blood pressure?
A. arteries
B. arteriole
C. venule
D. vein
D. Vein
Veins have the lowest blood pressure.
,- Veins carry oxygen-poor blood from the outlying-arts of the body to the
heart.
- An artery carries oxygen-rich blood from the heart to the peripheral parts
of the body.
- An arteriole extends from an artery to a capillary.
- A venue is a tiny vein that extends from a capillary to a larger vein.
Which of the heart chambers is the most muscular?
A. left atrium
B. right atrium
C. left ventricle
D. right ventricle
C. Left ventricle
Of the four heart chambers, the left ventricle is the most most muscular.
Which part of the brain interprets sensory information?
A. cerebrum
B. hindbrain
C. cerebellum
D. medulla oblongata
A. The cerebrum is the part of the brain that interprets sensory
information.
* It is the largest part of the brain.
- The cerebellum is positioned at the back of the head, between the brain
stem and the cerebrum.
- The medulla oblongata forms the base of the brain
- This part of the brain is responsible for blood flow and breathing, among
other things.
,A vaccination is a way of acquiring which type of immunity?
A. passive natural immunity
B. active natural immunity
C. active artificial immunity
D. distal nervous system
C. A vaccination is a way of acquiring active artificial immunity, where an
antigen is deliberately introduced into an an individual to stimulate the
immune system.
Which component of the nervous system is responsible for lowering the
heart rate?
A. central nervous system
B. sympathetic nervous system
C. parasympathetic nervous system
D. distal nervous system
C. The parasympathetic nervous system is responsible for lowering the
heart rate.
* It slows down the chart rate, dilates the blood vessels, and increases the
secretions of the digestive system.
- The central nervous system is composed of the brain and the spinal cord.
- The sympathetic nervous system is a part of the autonomic nervous
system; its role is to oppose the actions taken by the parasympathetic
nervous system.
- The sympathetic nervous system accelerates the heart, contracts the
blood vessels, and decreases the secretions of the digestive system.
Which of the following items is NOT appropriately matched with it
corresponding bodily system?
, A. kidneys; genitourinary system
B. heart; circulatory system
C. blood; endocrine system
D. diaphragm; respiratory system
C. Blood; endocrine system
The circulatory system circulates materials throughout the entire body
- The heart, blood, and blood vessels are part of the circulatory system.
- The kidneys are part of the genitourinary system
- The diaphragm is part of the respiratory system.
Which of the following describes the order food travels through the
digestive system?
A. trachea, stomach, small intestine, large intestine, rectum
B. mouth, stomach, small intestine, large intestine, rectum
C. stomach, large intestine, small intestine, rectum
D. esophagus, stomach, small intestine, large intestine, rectum
D.
- Food enters the mouth and then is swallowed down the esophagus into
the stomach, where stomach acids begin the break down process.
- Food then travels through the small intestine ( where the pancreas, liver
and intestine release digestive juices to further break down the food), to
the large intestine (where nutrients and water were absorbed, and waste
is transformed from liquid to stool) and finally to the rectum.