A
The heart is an example of a(n)
a. organ.
b. tissue.
c. organism.
d. system.
The needlelike threads of spongy bone are called
a. lamellae.
b. canaliculi.
c. osteons.
d. trabeculae.
D. TRABECULAE
The role of hemoglobin in the red blood cell is to carry
a. oxygen.
b. carbon dioxide.
c. hormones.
d. both A and B.
D. BOTH A AND B
The use of oxygen for cell metabolism is called
a. cellular respiration.
b. external respiration.
c. internal respiration.
d. pulmonary ventilation.
A. CELLULAR RESPIRATION
Which part of a full stomach may prevent the diaphragm from moving downward and possibly cause difficulty with taking a deep breath?
a. Body
b. Pylorus
c. Fundus
d. Rugae
C. FUNDUS
Which of the following is not a function of the cell membrane?
a. Protein synthesis
b. Regulation of what moves into and out of the cell
c. Identifying the cell
d. Communication between cells
a. protein synthesis
Bone-building cells are called
a. osteoblasts.
b. osteoclasts.
c. osteocytes.
d. chondrocytes.
A. OSTEOBLASTS
The bicuspid or mitral valve is the valve
a. between the left atrium and left ventricle.
b. that opens from the right ventricle into the artery.
c. between the right atrium and right ventricle.
C. RIGHT ATRIUM AND RIGHT VENTRICLE
The two phases of pulmonary ventilation are
a. inspiration and expiration.
b. external respiration and internal respiration.
c. external respiration and cellular respiration.
d. internal respiration and cellular respiration.
A. INSPIRATION AND EXPIRATION
DESCRIBE THE ANATOMICAL POSITION
FEET FORWARD, HANDS FORWARD, STANDING FORWARD
Signals generated by the nervous system are called
a. stimuli.
b. nerve impulses.
c. sense organs.
d. nerves.
b. nerve impulses
Voluntary muscle is _____ muscle.
a. striated
b. cardiac
c. skeletal
d. both A and C
D. BOTH A AND C
Another name for “hardening of the arteries” is
a. angina pectoris.
b. myocardial infarction.
c. atherosclerosis.
d. embolism.
C. ATHEROSCLEROSIS
Chemoreceptors that help regulate breathing can be found in the
a. medulla oblongata.
b. carotid artery.
c. aorta.
d. both B and C.
D. BOTH B AND C
What are varicose veins, and what is their cause?
HARDENED VEINS THAT ARE CAUSED BY LEAKY VALVES
An example of a benign tumor that arises from connective tissue is
a. osteoma.
b. melanoma.
c. adenoma.
d. lymphoma.
a. osteoma
Moving a body part away from the midline of the body is called
a. abduction.
b. pronation.
c. rotation.
d. adduction.
A. ABDUCTION
Which structure is known as the “pacemaker” of the heart?
a. Purkinje fibers
b. Sinoatrial node
c. Atrioventricular node
d. Bundle of His
B. SINOATRIAL NODE
Which is one of the most common diseases of the mouth and teeth in the developed world?
a. Periodontitis
b. Dental caries
c. Gingivitis
d. Thrush
B. DENTAL CARIES
The heart is an example of a(n)
a. organ.
b. tissue.
c. organism.
d. system.
A. ORGAN
The skin is an example of a _____ membrane.
a. mucous
b. serous
c. cutaneous
d. synovial
c. cutaneous
A red blood cell that is smaller than normal and has less hemoglobin than normal would be called
a. microcytic and hypochromic.
b. macrocytic and hypochromic.
c. microcytic and hyperchromic.
d. macrocytic and hyperchromic.
A. MICROCYTIC AND HYPOCHROMIC
The exchange of gases between the cells and the blood is called
a. cellular respiration.
b. external respiration.
c. internal respiration.
d. pulmonary ventilation.
A. CELLULAR RESPIRATION
Which enzyme is produced by the salivary glands and begins the chemical digestion of carbohydrates?
a. Salivary amylase
b. Salivary maltase
c. Salivary sucrase
d. Salivary lactase
A. SALIVARY AMYLASE
The body’s heaviest organ is the
a. liver.
b. brain.
c. large intestine.
d. skin.
D. SKIN