Bone Anatomy
These small bones make up your wrist.
What are the carpals?
These are the large chest muscles people call their “pecs.”
What are the pectorals?
This type of bone marrow stores fat as an energy reserve.
What is yellow bone marrow?
This protein makes up the thin filaments that myosin pulls during a muscle contraction.
What is actin?
In the chicken wing lab, pulling this tough cord transfers force from a muscle to a bone.
What is a tendon?
These bones make up your fingers and toes.
What are the phalanges?
This muscle forms the rounded cap of your shoulder.
What is the deltoid?
Bones store both phosphorus and this mineral, which helps give bone its hardness.
What is calcium?
This is the name for the membrane that carries an electrical signal along the surface of a muscle fiber.
What is the sarcolemma?
In the chicken wing lab, this connective tissue links one bone to another and helps stabilize a joint.
What is a ligament?
These five bones form the palm between your wrist and fingers.
What are the metacarpals?
This muscle group sits on the front of your thigh. Its name tells you it has four parts.
What are the quadriceps?
When new bone tissue is laid down, these bone-building cells do the work.
What are osteoblasts?
One motor neuron and all the muscle fibers it controls make up this functional group.
What is a motor unit?
This involuntary muscle tissue squeezes food through the digestive tract.
What is smooth muscle?
This forearm bone is on the thumb side when your palms face forward.
What is the radius?
These abdominal muscles sit along your sides and help you twist to look over your shoulder.
What are the obliques?
These soft spots between an infant’s skull bones allow the skull to expand as the brain grows.
What are fontanels?
Once a single muscle fiber reaches its threshold, it produces a full response to that stimulus. This principle describes that behavior.
What is the all or none principle?
The shoulder can move in many directions because the rounded head of the humerus fits into a shallow socket. This is the specific joint shape.
What is a ball-and-socket joint or synovial joint?
This thin bone runs along the outer side of your lower leg, next to the tibia.
What is the fibula?
This long, narrow muscle runs diagonally across the front of your thigh from the outer hip toward the inner knee.
What is the sartorius?
After a fracture, this temporary bridge made partly of cartilage helps stabilize the broken ends before it is replaced by bone.
What is a fibrocartilaginous callus or soft callus?
This enzyme breaks down acetylcholine at the neuromuscular junction so the chemical signal ends.
What is AChE?
A soccer player rolls an ankle and overstretches a ligament. This is the term for that injury.
What is a sprain?