Nervous About It
These branching structures receive signals and carry them toward the neuron's cell body.
What is a dendrite?
This is the outermost layer of the skin.
What is the epidermis?
This burn affects only the epidermis and typically causes redness and pain.
What is first-degree burn?
This is the longest and strongest bone in the human body.
What is the femur?
This muscle forms the rounded contour of the shoulder.
What is the deltoid?
This fracture occurs when a bone breaks but does not penetrate the skin.
What is closed fracture?
This long structure carries nerve impulses away from the neuron's cell body.
What is an axon?
This layer beneath the epidermis contains blood vessels, nerves, and glands.
What is the dermis?
A patient has a painful burn with redness and blisters. Identify the degree.
What is second-degree burn?
Commonly called the shoulder blade, this bone is part of the appendicular skeleton.
What is the scapula?
This large chest muscle helps move the upper arm.
What is the pectoralis major?
In this fracture, the broken bone communicates with the outside through a wound in the skin.
What is open fracture?
This fatty covering insulates the axon and increases the speed of nerve impulses.
What is a myelin sheath?
This deepest layer contains adipose tissue that provides insulation and cushioning.
What is the hypodermis?
This burn destroys the full thickness of the skin and may extend into deeper tissues.
What is third-degree burn?
This bone is located in the center of the chest and provides attachment for the ribs.
What is the sternum?
This anterior upper-arm muscle flexes the elbow.
What is the biceps brachii?
A runner develops a tiny bone crack after repetitive training.
What is a stress fracture?
These small sacs at the axon terminal store neurotransmitters until they are released.
What are synaptic vesicles?
These epidermal cells produce the pigment responsible for skin color.
What are melanocytes?
This small, solid, raised skin lesion is usually less than 1 cm.
What is a papule?
This large, weight-bearing bone is located in the lower leg.
What is the tibia?
This posterior upper-arm muscle extends the elbow.
What is the triceps brachii?
This incomplete fracture is common in children because their bones are more flexible.
What is a greenstick fracture?
This type of conduction allows an impulse to appear to “jump” from one node of Ranvier to the next.
What is saltatory conduction?
These specialized cells in the epidermis help recognize foreign substances and participate in immune defense.
What are Langerhans cells?
This raised skin lesion contains pus.
What is a pustule?
This bone forms the lower jaw and is the movable bone of the skull.
What is the mandible?
These two opposing muscle groups are located on the front and back of the thigh, respectively.
What are the quadriceps and hamstrings?
An X-ray shows that a patient's bone has broken into three or more fragments.
What is comminuted fracture?