Anatomy And Physiology Quiz

The circulatory system, also known as the cardiovascular system, is responsible for transporting blood throughout the body. It consists of the heart, blood vessels, and blood. The heart pumps oxygenated blood to the tissues and organs and returns deoxygenated blood to the lungs for re-oxygenation.

The primary function of the respiratory system is the exchange of gases. This system includes the lungs, airways, and respiratory muscles. It facilitates the intake of oxygen into the body and the removal of carbon dioxide, a waste product of metabolism.

Insulin is a hormone produced by the pancreas that regulates blood sugar (glucose) levels. It allows cells to take in glucose from the bloodstream for energy or storage, helping to lower blood sugar levels. Insulin plays a key role in maintaining metabolic balance.

Red blood cells (erythrocytes) are responsible for carrying oxygen from the lungs to the body's tissues and organs and transporting carbon dioxide back to the lungs for exhalation. Hemoglobin, a protein in red blood cells, binds to oxygen and facilitates its transport.

The skin is the largest organ of the human body. It serves as a protective barrier against external factors, helps regulate body temperature, and allows for sensory perception. The skin also plays a role in the production of vitamin D when exposed to sunlight.

The nephron is the basic functional unit of the kidney. Each kidney contains approximately one million nephrons, which filter blood to remove waste products and excess substances, producing urine. Nephrons play a crucial role in maintaining the body's fluid and electrolyte balance.

The shoulder and hip joints are ball-and-socket joints. These joints allow for a wide range of motion in multiple directions, including rotation. The ball-shaped end of one bone fits into the socket-shaped end of another, providing flexibility and movement.

The cerebellum is located at the back of the brain and is responsible for controlling balance, coordination, and fine motor skills. It helps ensure smooth and coordinated muscle movements, and it also plays a role in maintaining posture and equilibrium.

The human body's center of mass is typically located in the torso, around the level of the belly button. This central location allows for balanced and stable movement and is crucial for maintaining posture and equilibrium during various activities.

Lipids, specifically phospholipids, are the primary structural component of the cell membrane. The cell membrane is a phospholipid bilayer that provides a flexible, semi-permeable barrier around cells, protecting the cell's contents and regulating the movement of substances in and out of the cell.