BIOD103 MOD 4A EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++
Describe the function of the endocrine system. Define a gland. Define a hormone.
The function of the endocrine system is to control the secretion of hormones from
glands located throughout the body.
A gland is an organ that secretes hormones into the bloodstream.
A hormone is a chemical substance that is released in small amounts and travels
through the bloodstream to other tissues and organs to transfer information or
instructions.
Why is the pituitary gland known as the master gland? What are the sections of
the pituitary gland?
The pituitary gland is known as the master gland because it regulates the other glands
of the body. The sections of the pituitary gland are the anterior lobe, adenohypophysis,
and the posterior lobe, neurohypophysis.
What are the roles of the hormones secreted by the thyroid gland?
The roles of the hormones secreted by the thyroid gland are to maintain the basic
metabolic rate of the body, the growth of the body, and the metabolism of nutrients,
water, vitamins, and minerals.
,The adrenal cortex secretes three groups of hormones known as the A) __, B) __,
and C) __. Be familiar with the functions of these three groups of hormones.
A) Glucocorticoids,
B)Mineralocorticoids
C) Androgens.
Where is the thymus gland located, and what is the function of the hormones
secreted by this gland?
The thymus gland is located in the mediastinum and the hormones secreted by this
function in the immune system.
What is the function of the nervous system? What are the main divisions of the
nervous system?
The function of the nervous system is to coordinate all of the activities of the body
through receiving information, interpreting that information, and then sending responses
to the body to maintain homeostasis.
The main divisions of the nervous system are the central nervous system and the
peripheral nervous system.
What are the names of the meninges that cover the brain and the four major
structures of the brain?
, The three meninges are the dura mater, the pia mater, and the arachnoid mater. The
four major structures of the brain are the cerebellum, the cerebrum, the brain stem, and
the diencephalon.
What are the three functions of the spinal cord?
The main functions of the spinal cord are to
1) conduct sensory impulses from the peripheral nervous system to the brain
2) conduct motor impulses from the brain to the peripheral nervous system
3) process the body's reflexes
Where do cranial nerves originate, and what are their functions? Where do spinal
nerves originate, and what are their functions?
The cranial nerves originate in the brain. Their functions are to innervate the senses, the
motor movements of the head and shoulders, swallowing, breathing, speech, and the
muscles of the thoracic and abdominal cavities.
Spinal nerves originate in the spinal cord, and they have sensory and motor functions
throughout the body.
What are the two branches of the autonomic nervous system? What are their
functions?
The autonomic nervous system has two divisions: the sympathetic division and the
parasympathetic division. These two divisions have opposite effects on the body.
COMPLETE SOLUTIONS GRADED A++
Describe the function of the endocrine system. Define a gland. Define a hormone.
The function of the endocrine system is to control the secretion of hormones from
glands located throughout the body.
A gland is an organ that secretes hormones into the bloodstream.
A hormone is a chemical substance that is released in small amounts and travels
through the bloodstream to other tissues and organs to transfer information or
instructions.
Why is the pituitary gland known as the master gland? What are the sections of
the pituitary gland?
The pituitary gland is known as the master gland because it regulates the other glands
of the body. The sections of the pituitary gland are the anterior lobe, adenohypophysis,
and the posterior lobe, neurohypophysis.
What are the roles of the hormones secreted by the thyroid gland?
The roles of the hormones secreted by the thyroid gland are to maintain the basic
metabolic rate of the body, the growth of the body, and the metabolism of nutrients,
water, vitamins, and minerals.
,The adrenal cortex secretes three groups of hormones known as the A) __, B) __,
and C) __. Be familiar with the functions of these three groups of hormones.
A) Glucocorticoids,
B)Mineralocorticoids
C) Androgens.
Where is the thymus gland located, and what is the function of the hormones
secreted by this gland?
The thymus gland is located in the mediastinum and the hormones secreted by this
function in the immune system.
What is the function of the nervous system? What are the main divisions of the
nervous system?
The function of the nervous system is to coordinate all of the activities of the body
through receiving information, interpreting that information, and then sending responses
to the body to maintain homeostasis.
The main divisions of the nervous system are the central nervous system and the
peripheral nervous system.
What are the names of the meninges that cover the brain and the four major
structures of the brain?
, The three meninges are the dura mater, the pia mater, and the arachnoid mater. The
four major structures of the brain are the cerebellum, the cerebrum, the brain stem, and
the diencephalon.
What are the three functions of the spinal cord?
The main functions of the spinal cord are to
1) conduct sensory impulses from the peripheral nervous system to the brain
2) conduct motor impulses from the brain to the peripheral nervous system
3) process the body's reflexes
Where do cranial nerves originate, and what are their functions? Where do spinal
nerves originate, and what are their functions?
The cranial nerves originate in the brain. Their functions are to innervate the senses, the
motor movements of the head and shoulders, swallowing, breathing, speech, and the
muscles of the thoracic and abdominal cavities.
Spinal nerves originate in the spinal cord, and they have sensory and motor functions
throughout the body.
What are the two branches of the autonomic nervous system? What are their
functions?
The autonomic nervous system has two divisions: the sympathetic division and the
parasympathetic division. These two divisions have opposite effects on the body.
