MASTER ANATOMY + PHYSIOLOGY + KINESIOLOGY + PT FACT LIST (FULL)

What percentage of the human body is water?

60%.

What is the smallest unit of life?

The cell.

What does homeostasis maintain?

Stable internal conditions.

What is the main difference between positive and negative feedback?

Positive feedback amplifies changes, while negative feedback restores balance.

What divides the body into left and right halves?

The sagittal plane.

What is the function of osteoblasts?

To build bone.

What is Wolff's Law?

Bone adapts to stress.

How many bones are in an adult human skeleton?

206 bones.

What is the primary function of red blood cells?

To carry oxygen.

What are the two main divisions of the nervous system?

CNS (central nervous system) and PNS (peripheral nervous system).

What is the main muscle involved in breathing?

The diaphragm.

What does the Golgi apparatus do?

Packages proteins.

What are the four chambers of the heart?

Right atrium, left atrium, right ventricle, left ventricle.

What is the main action of the biceps brachii?

Elbow flexion and supination.

What is the primary role of platelets?

To clot blood.

What condition results from increased muscle tone and velocity-dependent tone increase?

Spasticity.

What type of joint is stabilized by ligaments and has a joint capsule?

Synovial joint.

What is the general pH range of normal blood?

7.35–7.45.

What is the resting heart rate range for adults?

60–100 bpm.

What is the function of type I muscle fibers?

They are slow and fatigue-resistant.

What happens during the stance phase of the gait cycle?

It accounts for 60% of the gait.

What is the significance of Newton's 3 laws?

They govern movement.