Which of the following terms describes the location of the wrist relative to the elbow?
a. distal
b. proximal
c. anterior
d. posterior ✔️✔️a
Where in the body does oxygen exchange occur between blood and tissues?
✔️✔️ Oxygen exchange occurs in the capillaries, where blood delivers oxygen to tissues and picks up
carbon dioxide.
What part of the brain controls balance and coordination?
✔️✔️ The cerebellum is responsible for balance and coordination.
Which blood type is known as the universal donor, and why?
✔️✔️ Blood type O-negative is the universal donor because it has no A, B, or Rh antigens, reducing the
risk of reaction.
What role does the hypothalamus play in the body’s endocrine system?
✔️✔️ The hypothalamus links the nervous and endocrine systems, controlling the pituitary gland and
regulating hormones.
How do tendons and ligaments differ in function?
✔️✔️ Tendons connect muscle to bone, while ligaments connect bone to bone at joints.
Which organ is primarily responsible for detoxifying chemicals and metabolizing drugs?
✔️✔️ The liver detoxifies chemicals, metabolizes drugs, and produces bile for digestion.
, How does the skin help regulate body temperature?
✔️✔️ The skin regulates temperature by sweating to cool the body and constricting blood vessels to
conserve heat.
What is the main structural component of cell membranes?
✔️✔️ Phospholipids form the main structural component of cell membranes, creating a barrier that
regulates cell entry and exit.
What type of white blood cells are involved in the body's response to infection?
✔️✔️ Lymphocytes, such as T-cells and B-cells, are key in fighting infections by identifying and
destroying pathogens.
What is the purpose of platelets in the blood?
✔️✔️ Platelets help with blood clotting, stopping bleeding by forming a clot at injury sites.
Which gland regulates metabolism and calcium levels in the body?
✔️✔️ The thyroid gland regulates metabolism and produces calcitonin to help control calcium levels.
How do the villi in the small intestine aid digestion?
✔️✔️ Villi increase surface area in the small intestine, aiding in the absorption of nutrients into the
bloodstream.
What is the difference between systolic and diastolic blood pressure?
✔️✔️ Systolic blood pressure is the pressure when the heart contracts, and diastolic pressure is when
the heart relaxes.
What structure in the eye adjusts to focus light on the retina?
✔️✔️ The lens changes shape to focus light on the retina, allowing for clear vision.