Question: Which of the following are one-way valves located between the atria and ventricles?
Answer Options:
Biaortic valve, Mitral valve, Aortic valve, Atrioventricular valves
Answer: Atrioventricular valves
Question: A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of
Answer Options:
Melatonin, Thyroid hormone, Growth hormone, Insulin
Answer: Thyroid hormone
Question: Of the three germ layers that give rise to all adult tissues and organs, which gives rise to the heart?
Answer Options:
Ectoderm, Endoderm, Mesoderm, Placenta
Answer: Mesoderm
Question: Which vessels drain the heart and generally parallel the large surface arteries?
Answer Options:
Anterior cardiac veins, Circumflex veins, Coronary veins, Marginal veins
Answer: Coronary veins
Question: Which of the following terms would be used in the name of a muscle that moves the leg away from the body?
Answer Options:
Flexor, Adductor, Extensor, Abductor
Answer: Abductor
Question: Which portion of the ECG corresponds to repolarization of the atria?
Answer Options:
P wave, QRS complex, T wave, None of the above: atrial repolarization is masked by ventricular depolarization
Answer: None of the above: atrial repolarization is masked by ventricular depolarization
Question: The ______ is a continuous muscular digestive tube that extends from the mouth to the anus.
Answer Options:
Accessory duct, Cystic duct, Alimentary canal, Pancreatic duct
Answer: Alimentary canal
Question: A barrier to pathogens is the saliva in the mouth, which is rich in _______ which is an enzyme that destroys bacteria by digesting their cell walls.
Answer Options:
Mucous, Lysozyme, Periosome, Phagocytes
Answer: Lysozyme
Question: Which of the following anatomical structures is not part of the conducting zone?
Answer Options:
Pharynx, Nasal cavity, Alveoli, Bronchi
Answer: Alveoli
Question: Which of the following structures is not part of the bronchial tree?
Answer Options:
Alveoli, Bronchi, Terminal bronchioles, Respiratory bronchioles
Answer: Alveoli
Question: Which of the following processes does atmospheric pressure play a role in?
Answer Options:
Production of pulmonary surfactant, Pulmonary ventilation, Resistance, Surface tension
Answer: Pulmonary ventilation
Question: When do fetal breathing movements begin?
Answer Options:
Around week 20, Around week 37, Around week 16, After birth
Answer: Around week 16
Question: The partial pressure of carbon dioxide is 45 mm Hg in the blood and 40 mm Hg in the alveoli. What happens to the carbon dioxide?
Answer Options:
It diffuses into the blood, It diffuses into the alveoli, The gradient is too small for carbon dioxide to diffuse, It decomposes into carbon and oxygen
Answer: It diffuses into the alveoli
Question: Which is not a major function of the small intestine?
Answer Options:
Mixes chyme with digestive juices, Propels food at a rate slow enough for digestion and absorption, Stimulates protein-digesting enzymes, Performs physical digestion via segmentation
Answer: Stimulates protein-digesting enzymes
Question: What is the name of the area at the base of the bladder marked by the two ureters in the posterior-lateral aspect?
Answer Options:
Renin, Trigone, Mesangial, Fenestrations
Answer: Trigone
Question: The jejunum is about
Answer Options:
1 meter, 2 meters, 3 meters, 4 meters
Answer: 2 meters
Question: Which of the following is considered one of the essential characteristics of life?
Answer Options:
a. cognition
b. self-awareness
c. perception
d. metabolism
Answer: d. metabolism
Question: Which system of the body is responsible for initiating immune responses?
Answer Options:
a. cardiovascular
b. endocrine
c. lymphatic
d. respiratory
Answer: c. lymphatic
Question: Which of the following reactions is a major buffer in bodily fluids?
Answer Options:
a. NaOH → Na+ + OH-
b. HCl → H+ + Cl-
c. HCl + NaOH → NaCl + H2O
d. H2CO3 ↔ H+ + HCO3-
Answer: d. H2CO3 ↔ H+ + HCO3-
Question: At what stage of the menstrual cycle do LH levels begin to increase?
Answer Options:
a. menses
b. ovulation
c. proliferative phase
d. secretory phase
Answer: c. proliferative phase
Question: The walls of the intestines and stomach are composed of which of the following types of muscle tissue?
Answer Options:
a. cardiac
b. skeletal
c. smooth
d. synergistic
Answer: c. smooth
Question: Starting from the surface and moving inward, what are the layers of the integumentary system?
Answer Options:
a. dermis, epidermis, hypodermis
b. epidermis, dermis, hypodermis
c. epidermis, hypodermis, dermis
d. hypodermis, dermis, epidermis
Answer: b. epidermis, dermis, hypodermis
Question: In humans, the integumentary system produces what vitamin?
Answer Options:
a. A
b. B
c. D
d. K
Answer: c. D
Question: Melanin is produced in which of the following cells?
Answer Options:
a. cornified cells
b. keratinocytes
c. melanocytes
d. melanosomes
Answer: c. melanocytes
Question: Two systems for classifying joints are based on
Answer Options:
a. joint cavity size and the ability to regenerate damage
b. location and size
c. size and the number of muscular connections holding them together
d. range of motion and the type of connective tissue that holds them together
Answer: d. range of motion and the type of connective tissue that holds them together
Question: Joints that connect two bones and contain fibrocartilage are called
Answer Options:
a. sutures
b. symphyses
c. synchondroses
d. syndesmoses
Answer: b. symphyses