Basics of Human A & P: Musculoskeletal Jeopardy

I Found this Humerus: ID Bones

100

This part of the body is primarily composed of flat bones and protects the brain

The skull

200

This region of the skeleton is the most medial

The Axial Skeleton

300

This unique cervical vertebrae holds up the head, like a famous sculpture holds up the earth

The Atlas

400

These small structures can be seen in bone using a microscope, and feature a Haversian canal with surrounding lamellae. 

Osteons

500

This mineral is crucial in providing bone with it's strength, while collagen provides flexibility. 

Hydroxyapatite

No Bone About It: Movements

100

This is a movement of a bone around its longitudinal axis

Rotation

200

This movement is specific to the hand: it's when the thumb is brought into contact with each of the fingers. 

Opposition

300

This movement decreases the angle of a joint by bringing two bones closer together.

Flexion

400

This is a lateral rotation of the wrist so that the palm is anterior, and the radius and ulna are parallel. 

Supination

500

This is the movement of a limb away from the midline. 

Abduction

A Bone to Pick with A & P: Skeletal Functions

100

This bone of the leg is massive because it needs to transmit and support a lot of weight. 

The Femur

200

While not all regions of the skeleton do this, many enclose other skeletal systems. In this way, they ______ the soft organs. 

Protect

300

Together with muscles, bones form a _____ system that moves the body

Lever

400

Infants have a lot of this type of marrow, more than adults, in order to produce blood. 

Red marrow

500

What type of marrow is located in the diaphysis of long bones and stores lipids?

Yellow Marrow

Never Skip Leg Day: Muscles of the Body

100

These muscles are multinucleate, are the largest type of muscles by mass, and have very obvious striations. 

Skeletal muscle

200

This muscle is located on the upper shoulder and is a common location for vaccinations. 

Deltoid

300

This muscle extends across the jawbone from the zygomatic process to the mandible, and helps close the jaw during talking and chewing. 

Masseter

400

This large diamond-shaped muscle of the back is the most superficial, and it extends the neck; raises, rotates, and retracts (adducts) the scapula, and stabilizes it. 

Trapezius

500

These tiny muscles in the skin function to raise and lower our body hair, and give us goosebumps. 

Arrector pili

Contractile Strength: Muscle Characteristics

100

Skeletal muscle cells are filled with these organelles, which push their nuclei to the side and are important in contraction. 

Myofibrils

200

This junction is where muscles and nerves meet. 

Neuromuscular Junction

300

This is the contractile unit of muscles, and are what myofibrils are composed of. 

Sarcomeres

400

This thin, delicate connective tissue wraps individual muscle fibers. 

Endomysium

500

This chemical is an important neurotransmitter that stimulates muscle fibers. 

Acetylcholine