The greater the concentration gradient, the faster the diffusion rate.
Indicate whether the statement is true or false
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Question 2) The most abundant nitrogenous waste in blood is urea, which is produced by the combination of ammonia with carbon dioxide.
Indicate whether the statement is true or false
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Question 3) Which of the following is not a benefit of breast feeding?
A) It helps clear meconium from the baby's intestine.
B) It reduces the incidence of jaundice in neonates.
C) It prevents colonization of the neonatal intestine with beneficial bacteria.
D) It is more easily digested and absorbed than cow's milk.
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Question 4) Which of the following is a lung disease marked by a reduced number of cilia, reduced motility of the remaining cilia, goblet cell hypertrophy and hypersecretion, and thick sputum?
A) Atelectasis
B) Chronic bronchitis
C) Emphysema
D) Asthma
E) Oat-cell carcinoma
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Question 5) What are the least abundant of the formed elements?
A) Eosinophils
B) Erythrocytes
C) Platelets
D) Basophils
E) Neutrophils
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Question 6) Nearly all the somatosensory input to the cerebrum passes by way of synapses in which region of the brain?
A) Epithalamus
B) Hypothalamus
C) Cerebellum
D) Thalamus
E) Reticular formation
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Question 7) Ligand-gated ion channels are membrane proteins that open or close in response to the binding of a chemical.
Indicate whether the statement is true or false
(
Question 8) Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.
Indicate whether the statement is true or false
(
Question 9) Consumption of excess calories during adulthood causes adipocytes to multiply.
Indicate whether the statement is true or false
(
Question 10) A skateboarder falls and lands directly on his buttocks and lower back. He does not feel much pain and continues skating. After a couple of days he begins experiencing right hip pain and notices his right foot and leg are rotated to the right.
A doctor diagnoses a muscle spasm. Which of the following muscles is most likely causing the leg and foot rotation?
A) Adductor longus
B) Piriformis
C) Quadratus lumborum
D) Tibialis posterior
E) Sacrospinalis
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