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WGU D203 Anatomy & Physiology
Questions and Correct Answers/ Latest
Update / Already Graded
appendicular skeleton
Ans: made up of the bones of the extremities (arms and legs).
Appended to the axial skeleton.
Axial skeleton
Ans: made up of the bones along the center, or axis, of your
body.
Compact bone tissue
Ans: forms the extremely hard outside layer of bones, gives
bone its smooth, dense, solid appearance. It accounts for about
80% of the total bone mass of the adult skeleton.
Spongy bone tissue
Ans: fills part or all the interior of many bones. They are porous
like a sponge, containing an irregular network of spaces, much
less dense than compact bone. It has a greater surface area
than compact bone but makes up 20% of bone mass.
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Long bones
Ans: consist of a long shaft, are cylinder like in cross -section,
and are (usually) expanded at either end. Act as levers for the
skeletal muscles to act upon.
Short bones
Ans: Equal in width and length. Mainly composed of spongy
bones surrounded by a thin layer of compact bone.
Flat bones
Ans: Smooth, with thin bones comprising two thin and flat
plates of compact bone, between which lies a layer of spongy
bone.
Irregular bones
Ans: Elaborate in shape and thus cannot be classified into any
of the other categories.
Sesamoid bones
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Ans: Small or bony nodules embedded in a tendon where they
pass over an angular structure, such as the knee, hand, wrist, or
foot.
Joint
Ans: Where two bones come together. Divided into three
categories based on their range of movement: immovable,
partly movable, and movable.
Cartilaginous joints
Ans: are connected by hyaline cartilage and have no joint
cavity. (Example: joints between adjacent vertebrae in the
spine)
Fibrous joints
Ans: are connected by dense connective tissue and have no
joint cavity. (Examples: skull, rib cage)
Synovial joints
Ans: have a fluid-filled cavity called a bursa that surrounds an d
provides cushion for articulating bones. (Examples: hips, knee
joints)
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Cartilage
Ans: The tough but flexible tissue that covers the ends of the
bones of movable joints and protects bones by preventing them
from rubbing against each other.
Ligament
Ans: Connective tissue that binds one bone to another. Helps
hold structures together and allows for side-to-side stability.
Tendon
Ans: a connective tissue that attaches muscle to bone. Aids in
the movement of the bone or structure.
Skeletal Muscle
Ans: Voluntary movement, produces heat, protects organs.
Attached to bones and around entrance points to body (e.g.,
mouth).
Cardiac Muscle
All rights reserved © 2025/ 2026 |
WGU D203 Anatomy & Physiology
Questions and Correct Answers/ Latest
Update / Already Graded
appendicular skeleton
Ans: made up of the bones of the extremities (arms and legs).
Appended to the axial skeleton.
Axial skeleton
Ans: made up of the bones along the center, or axis, of your
body.
Compact bone tissue
Ans: forms the extremely hard outside layer of bones, gives
bone its smooth, dense, solid appearance. It accounts for about
80% of the total bone mass of the adult skeleton.
Spongy bone tissue
Ans: fills part or all the interior of many bones. They are porous
like a sponge, containing an irregular network of spaces, much
less dense than compact bone. It has a greater surface area
than compact bone but makes up 20% of bone mass.
All rights reserved © 2025/ 2026 |
, Page |2
Long bones
Ans: consist of a long shaft, are cylinder like in cross -section,
and are (usually) expanded at either end. Act as levers for the
skeletal muscles to act upon.
Short bones
Ans: Equal in width and length. Mainly composed of spongy
bones surrounded by a thin layer of compact bone.
Flat bones
Ans: Smooth, with thin bones comprising two thin and flat
plates of compact bone, between which lies a layer of spongy
bone.
Irregular bones
Ans: Elaborate in shape and thus cannot be classified into any
of the other categories.
Sesamoid bones
All rights reserved © 2025/ 2026 |
, Page |3
Ans: Small or bony nodules embedded in a tendon where they
pass over an angular structure, such as the knee, hand, wrist, or
foot.
Joint
Ans: Where two bones come together. Divided into three
categories based on their range of movement: immovable,
partly movable, and movable.
Cartilaginous joints
Ans: are connected by hyaline cartilage and have no joint
cavity. (Example: joints between adjacent vertebrae in the
spine)
Fibrous joints
Ans: are connected by dense connective tissue and have no
joint cavity. (Examples: skull, rib cage)
Synovial joints
Ans: have a fluid-filled cavity called a bursa that surrounds an d
provides cushion for articulating bones. (Examples: hips, knee
joints)
All rights reserved © 2025/ 2026 |
, Page |4
Cartilage
Ans: The tough but flexible tissue that covers the ends of the
bones of movable joints and protects bones by preventing them
from rubbing against each other.
Ligament
Ans: Connective tissue that binds one bone to another. Helps
hold structures together and allows for side-to-side stability.
Tendon
Ans: a connective tissue that attaches muscle to bone. Aids in
the movement of the bone or structure.
Skeletal Muscle
Ans: Voluntary movement, produces heat, protects organs.
Attached to bones and around entrance points to body (e.g.,
mouth).
Cardiac Muscle
All rights reserved © 2025/ 2026 |
