Chapter 6: The Human Body

Which of the following statements regarding anaerobic metabolism is correct? Anaerobic metabolism can be supported in most of the body's cells for up to 10 minutes. Anaerobic metabolism produces lactic acid and occurs when cellular oxygen is limited. The body functions optimally and produces maximum ATP during anaerobic metabolism. Without anaerobic metabolism, perfusion to the body would suffer and cellular death would occur.

The air you breathe is _______ oxygen, and the air you exhale is _______ oxygen. 16%, 25% 21%, 16% 25%, 32% 21%, 35%

The ___________ plane separates the body into left and right halves. sagittal coronal transverse midsagittal

The cervical spine is composed of ___________ vertebrae. four five six seven

Which of the following is NOT a facial bone? Mastoid Maxilla Mandible Zygoma

A person's bones will become brittle if he or she is deficient in: sodium. calcium. potassium. magnesium.

Skeletal muscle is also called: smooth muscle. autonomic muscle. voluntary muscle. involuntary muscle.

The firm cartilaginous ring that forms the inferior portion of the larynx is called the: costal cartilage. cricoid cartilage. thyroid cartilage. tracheal cartilage.

An increase in heart rate and contractility occurs due to stimulation of: beta-1 receptors. beta-2 receptors. alpha-1 receptors. alpha-2 receptors.

White blood cells, which are also called leukocytes, function by: producing the body's erythrocytes. producing blood-clotting factors. protecting the body from infection. carrying oxygen and other nutrients.

The autonomic nervous system controls all of the following functions, EXCEPT: digestion. breathing. breath holding. vessel dilation.

Which of the following skin layers contains sweat and oil glands, hair follicles, blood vessels, and nerve endings? Dermis Epidermis Sebaceous Subcutaneous

The kidneys and pancreas are called retroperitoneal organs because they: are protected by the anterior rib cage. are located behind the abdominal cavity. sit in front of the liver, spleen, and stomach. lie just anterior to the costovertebral angle.

Abnormalities in metabolism are MOST likely to be caused by dysfunction of the: pancreas. thyroid gland. adrenal gland. parathyroid gland.

Which of the following statements regarding the kidneys is correct? The kidneys eliminate toxic waste products from the body and control the body's fluid balance. Both kidneys are located in the anterior abdominal cavity and lie in between the liver and the spleen. Because the kidneys require little oxygen, only 5% of the body's blood volume passes through them each minute. A series of small blood vessels attach the kidneys directly to the superior vena cava and renal arteries.

Which of the following conditions would affect the "Q" portion of the V/Q ratio? Pulmonary edema Airway obstruction Pulmonary embolism Slow, shallowing breathing

Which three bones make up the shoulder girdle? Clavicle, scapula, humerus Acromion, clavicle, scapula Acromion, scapula, humerus Acromion, humerus, clavicle

Which of the following is a function of the upper airway? Relaxes smooth muscle in the bronchioles Exchanges oxygen and carbon dioxide Creates sound from vocal cord vibration Warms and humidifies inhaled air

Which of the following arteries does NOT carry highly oxygenated blood? Aorta Renal Femoral Pulmonary

Which of the following is not a part of the life cycle of sperm? Produced in specialized cells and ducts in the male testicle Develops and matures in the epididymis Carried through the vasa deferentia to the urethra during ejaculation Deposited by the seminal vesicles