Muscular System
Nervous System
Cardiovascular
Digestive
Random A&P Facts
100

A tendon connects ___ to ___.

What is muscle to bone?

100

This part of the part of the brain coordinates voluntary movement.

What is the cerebellum?

100

The structure that initiates each cardiac cycle.

What is the SA node?

100

This is the name of the "fatty apron" of the body.

What is the greater omentum?

100

This bone is the only bone in the human body that does not directly connect to another bone, instead being anchored by muscles and ligaments.

What is the hyoid bone?

200

This is the name of the enzyme that breaks down acetylcholine.

What is acetylcholinesterase?

200

These are the two cell types that make up the tissue of the nervous system.

What are neurons and neuroglia?

200

This is the vein that supplies the left atrium with blood.

What is the pulmonary vein?

200

This is the sphincter that lies between the stomach and small intestines.

What is the ileocecal sphincter?

200

This organ can regenerate lost tissue so effectively that up to two-thirds of it can be removed and still grow back to near its original size.

What is the liver?

300

Neurotransmitters are stored in vesicles located here.

What is at the ending of a motor neuron?

300

In the CNS myelin is formed by ______.

What are oligodendrocytes?

300

An enlarged Q wave on an EKG may indicate this.

What is a myocardial infarction (AKA heart attack)?

300

This is the name for the cells that secrete hydrochloric acid (HCl).

What are parietal cells?

300

This membrane surrounds the lungs and reduces friction as they expand and contract during breathing.

What is the pleura?

400

Myofibrils are composed primarily of these protein filaments.

What is actin and myosin?

400

Cerebrospinal fluid occupies this space in the meninges.

What is the subarachnoid space?

400

The QRS Complex on an EKG represents this.

What is ventricular depolarization?

400

This is the vitamin required in combination with intrinsic factor for it to be absorbed.

What is vitamin B12?

400

If stretched out flat, this organ would cover an area of about 750 square feet - roughly the size of a tennis court.

What are the lungs?

500

This is the name for the outermost layer of connective tissue surrounding a skeletal muscle.

What is perimysium?

500

Neurons that conduct impulses from the CNS to muscles or glands are called _____ neurons.

What are motor neurons?

500

This is the opening of the septum between the right and left atrium of a fetus.

What is the foramen ovale?

500

These are the four regions of the stomach.

What is the cardiac region, body, pyloric region, and fundic region?

500

The muscles responsible for goosebumps are a leftover evolutionary feature that once helped our furry ancestors appear larger when threatened.

What are the arrector pili muscles?