EMT Chapter 6

A patient has a blood pressure of 130/70 mm Hg. The "130" in this measurement represents: ventricular filling. ventricular contraction. atrial contraction. ventricular relaxation.

ventricular contraction.

As the bronchus divides into smaller bronchioles, the terminal ends of these smaller passages form the: pleura. capillaries. alveoli. bronchi.

alveoli.

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

breath holding.

Stimulation of alpha-adrenergic receptors results in: increased heart rate. dilation of the blood vessels. constriction of the blood vessels. increased cardiac contractility.

constriction of the blood vessels.

Oxygen and carbon dioxide pass across the alveolar membrane in the lungs through a process called: ventilation. osmosis. diffusion. breathing.

diffusion.

The bony prominence on the lateral/superior aspect of the thigh is called the: greater trochanter. sacroiliac joint. sacral symphysis. iliac crest.

greater trochanter.

A by-product of involuntary muscle contraction and relaxation is: lactic acid. heat. oxygen. nitrogen.

heat.

The body's backup system of respiratory control, which is based on low concentrations of oxygen in the blood, is called the: hypoxic drive. oxyhemoglobin drive. pneumotaxic drive. hypocarbic drive.

hypoxic drive.

Anterior to the knee is a specialized bone called the: patella. calcaneus. tibia. femur.

patella.

The bones that constitute the fingers and toes are called: metacarpals. carpals. metatarsals phalanges.

phalanges.

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

thyroid gland.

At rest, the normal adult heart rate should not exceed: 100 beats/min. 90 beats/min. 80 beats/min. 70 beats/min.

100 beats/min.

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

21%; 16%

All critical life functions are coordinated in which part of the brain? Cerebrum Gray matter Cerebellum Brainstem

Brainstem

A patient has a large accumulation of blood in the sac surrounding the heart. Which of the following types of shock would this condition cause? Obstructive Cardiogenic Neurogenic Hypovolemic

Obstructive

___________ pressure is the pressure exerted by a liquid that occurs when blood moves through an artery at relatively high pressures. Hydrostatic Oncotic Diffusion Osmotic

Hydrostatic

Signs of adequate breathing in the adult include all of the following, except: respirations of 18 breaths/min. a reduction in tidal volume. rhythmic inhalation and exhalation. bilaterally clear breath sounds.

a reduction in tidal volume.

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

beta-1 receptors.

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

calcium.

Mean arterial pressure (MAP) is a product of: heart rate and systemic vascular resistance. heart rate and stroke volume. cardiac output and systemic vascular resistance. stroke volume and systemic vascular resistance.

cardiac output and systemic vascular resistance.

The artery that can be palpated on the anterior surface of the foot is the: ventral pedis. posterior tibial. dorsalis pedis. anterior tibial.

dorsalis pedis.

The brain connects to the spinal cord through a large opening at the base of the skull called the: foramen magnum. foramen ovale. spinous foramen. vertebral foramen.

foramen magnum.

The bones of the forearm are called the: tibia and radius. radius and ulna. radius and humerus. humerus and ulna.

radius and ulna.

Activities such as walking, talking, and writing are regulated by the: central nervous system. somatic nervous system. involuntary nervous system. autonomic nervous system.

somatic nervous system.