I Found this Humerus: ID Bones
This part of the body is primarily composed of flat bones and protects the brain
The skull
This is a movement of a bone around its longitudinal axis
Rotation
This bone of the leg is massive because it needs to transmit and support a lot of weight.
The Femur
These muscles are multinucleate, are the largest type of muscles by mass, and have very obvious striations.
Skeletal muscle
Skeletal muscle cells are filled with these organelles, which push their nuclei to the side and are important in contraction.
Myofibrils
This region of the skeleton is the most medial
The Axial Skeleton
This movement is specific to the hand: it's when the thumb is brought into contact with each of the fingers.
Opposition
While not all regions of the skeleton do this, many enclose other skeletal systems. In this way, they ______ the soft organs.
Protect
This muscle is located on the upper shoulder and is a common location for vaccinations.
Deltoid
This junction is where muscles and nerves meet.
Neuromuscular Junction
This unique cervical vertebrae holds up the head, like a famous sculpture holds up the earth
This movement decreases the angle of a joint by bringing two bones closer together.
Flexion
Together with muscles, bones form a _____ system that moves the body
Lever
This muscle extends across the jawbone from the zygomatic process to the mandible, and helps close the jaw during talking and chewing.
Masseter
This is the contractile unit of muscles, and are what myofibrils are composed of.
Sarcomeres
These small structures can be seen in bone using a microscope, and feature a Haversian canal with surrounding lamellae.
This is a lateral rotation of the wrist so that the palm is anterior, and the radius and ulna are parallel.
Supination
Infants have a lot of this type of marrow, more than adults, in order to produce blood.
Red marrow
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
This thin, delicate connective tissue wraps individual muscle fibers.
Endomysium
This mineral is crucial in providing bone with it's strength, while collagen provides flexibility.
Hydroxyapatite
This is the movement of a limb away from the midline.
Abduction
What type of marrow is located in the diaphysis of long bones and stores lipids?
Yellow Marrow
These tiny muscles in the skin function to raise and lower our body hair, and give us goosebumps.
Arrector pili
This chemical is an important neurotransmitter that stimulates muscle fibers.
Acetylcholine