WGU C458 (Updated 2026)
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Q: What are the primary functions of the human skeletal system?
A: This system acts as the body's structural foundation, providing a rigid
framework that supports weight, shields vital internal organs from injury, and
works in tandem with muscles to facilitate locomotion. ✔️✔️
Q: In anatomy, how is a "joint" defined?
A: A joint is the specific physiological location where two or more bones meet or
articulate. ✔️✔️
Q: What is the role of cartilage within the skeletal structure?
A: Cartilage is a resilient, pliable connective tissue found at the points where bones
meet; it acts as a shock absorber and reduces friction to prevent the bones from
grinding against each other. ✔️✔️
Q: What is the functional difference between a ligament and a tendon?
A: A ligament is a fibrous tissue that attaches one bone to another to stabilize a
joint, whereas a tendon is a flexible cord that anchors a muscle to a bone to allow
for movement. ✔️✔️
Q: How is the muscular system organized and what is its purpose?
A: This system consists of three distinct categories of tissue—skeletal (striated),
visceral (smooth), and cardiac. Whether they are moving the limbs or pumping
blood through the heart, these tissues are the primary drivers of all bodily motion.
✔️✔️
,Q: What characterizes "striated" muscle tissue?
A: Striated muscle is identified by its distinct "banded" or striped appearance under
a microscope, a result of the organized arrangement of the proteins responsible for
contraction. ✔️✔️
Muscular System -ANSWER ✔️✔️Composed of three types of muscle tissue:
striated, smooth, and cardiac. Muscles, whether attached to bones or to internal
organs and blood vessels, are responsible for movement.
Striated Muscle -ANSWER ✔️✔️A muscle that appears banded
Smooth Muscle -ANSWER ✔️✔️Involuntary muscle found inside many internal
organs of the body
Cardiac Muscle -ANSWER ✔️✔️Involuntary muscle tissue found only in the heart.
Nervous System -ANSWER ✔️✔️Composed of the central nervous system (brain
and spinal cord) and peripheral nervous system (outside the brain and spinal cord).
The PNS relays messages between the CNS and other areas of the body, including
the sensory organs
Respiratory System -ANSWER ✔️✔️Consists of the lungs, passageways for airflow,
blood vessels, and muscles that work together to bring oxygen into the body and
expel carbon dioxide. The respiratory passages are divided into the upper and
lower respiratory tracts.
, Cardiovascular System -ANSWER ✔️✔️Consists of the heart and blood vessels.
Arteries carry oxygenated blood away from the heart, while veins carry
deoxygenated blood back to the heart. The cardiovascular system transports
nutrients and oxygen to body cells through the flow of blood
Digestive System -ANSWER ✔️✔️Composed of the digestive tract and its
accessory organs. The four functions of the digestive system are ingestion,
digestion, absorption, and elimination
Urinary System -ANSWER ✔️✔️Balances the fluids in the body by producing,
storing, and eliminating urine. The kidneys filter out waste products, reabsorb
water and other substances, and produce urine
Immune System -ANSWER ✔️✔️Produces, stores, and carries white blood cells.
The network of cells, tissues, and organs work together to defend and protect the
body against foreign invaders that can cause sickness and disease
Integumentary System -ANSWER ✔️✔️Consists of the skin, mucous membranes,
hair, and nail which cover and protect parts of the body
Reproductive System -ANSWER ✔️✔️Reproduce offspring- produce male sex cells
(sperm) and female sex cells (oocytes / eggs)
Endocrine System -ANSWER ✔️✔️Sends hormones that influence growth,
development, and energy-producing activities and keep the body in homeostasis
Infectious (Communicable) Diseases -ANSWER ✔️✔️Diseases caused by bacteria,
viruses, fungi, and parasites
QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Q: What are the primary functions of the human skeletal system?
A: This system acts as the body's structural foundation, providing a rigid
framework that supports weight, shields vital internal organs from injury, and
works in tandem with muscles to facilitate locomotion. ✔️✔️
Q: In anatomy, how is a "joint" defined?
A: A joint is the specific physiological location where two or more bones meet or
articulate. ✔️✔️
Q: What is the role of cartilage within the skeletal structure?
A: Cartilage is a resilient, pliable connective tissue found at the points where bones
meet; it acts as a shock absorber and reduces friction to prevent the bones from
grinding against each other. ✔️✔️
Q: What is the functional difference between a ligament and a tendon?
A: A ligament is a fibrous tissue that attaches one bone to another to stabilize a
joint, whereas a tendon is a flexible cord that anchors a muscle to a bone to allow
for movement. ✔️✔️
Q: How is the muscular system organized and what is its purpose?
A: This system consists of three distinct categories of tissue—skeletal (striated),
visceral (smooth), and cardiac. Whether they are moving the limbs or pumping
blood through the heart, these tissues are the primary drivers of all bodily motion.
✔️✔️
,Q: What characterizes "striated" muscle tissue?
A: Striated muscle is identified by its distinct "banded" or striped appearance under
a microscope, a result of the organized arrangement of the proteins responsible for
contraction. ✔️✔️
Muscular System -ANSWER ✔️✔️Composed of three types of muscle tissue:
striated, smooth, and cardiac. Muscles, whether attached to bones or to internal
organs and blood vessels, are responsible for movement.
Striated Muscle -ANSWER ✔️✔️A muscle that appears banded
Smooth Muscle -ANSWER ✔️✔️Involuntary muscle found inside many internal
organs of the body
Cardiac Muscle -ANSWER ✔️✔️Involuntary muscle tissue found only in the heart.
Nervous System -ANSWER ✔️✔️Composed of the central nervous system (brain
and spinal cord) and peripheral nervous system (outside the brain and spinal cord).
The PNS relays messages between the CNS and other areas of the body, including
the sensory organs
Respiratory System -ANSWER ✔️✔️Consists of the lungs, passageways for airflow,
blood vessels, and muscles that work together to bring oxygen into the body and
expel carbon dioxide. The respiratory passages are divided into the upper and
lower respiratory tracts.
, Cardiovascular System -ANSWER ✔️✔️Consists of the heart and blood vessels.
Arteries carry oxygenated blood away from the heart, while veins carry
deoxygenated blood back to the heart. The cardiovascular system transports
nutrients and oxygen to body cells through the flow of blood
Digestive System -ANSWER ✔️✔️Composed of the digestive tract and its
accessory organs. The four functions of the digestive system are ingestion,
digestion, absorption, and elimination
Urinary System -ANSWER ✔️✔️Balances the fluids in the body by producing,
storing, and eliminating urine. The kidneys filter out waste products, reabsorb
water and other substances, and produce urine
Immune System -ANSWER ✔️✔️Produces, stores, and carries white blood cells.
The network of cells, tissues, and organs work together to defend and protect the
body against foreign invaders that can cause sickness and disease
Integumentary System -ANSWER ✔️✔️Consists of the skin, mucous membranes,
hair, and nail which cover and protect parts of the body
Reproductive System -ANSWER ✔️✔️Reproduce offspring- produce male sex cells
(sperm) and female sex cells (oocytes / eggs)
Endocrine System -ANSWER ✔️✔️Sends hormones that influence growth,
development, and energy-producing activities and keep the body in homeostasis
Infectious (Communicable) Diseases -ANSWER ✔️✔️Diseases caused by bacteria,
viruses, fungi, and parasites
