The eyelids are connected at the
A) palpebral fissure.
B) medial and lateral angles.
C) lacrimal caruncle.
D) chalazion.
E) conjunctiva.
B
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In a fetus, the umbilical arteries arise from the renal arteries
Indicate whether the statement is true or false
Identify structure "B" on the neuron.
A. Node of Ranvier B. Neuron cell body (soma) C. Schwann cell D. Axon E. Dendrites
Arrange the following steps of protein metabolism in correct sequence.1. Ammonia is converted to urea in the liver.2. Oxidative deamination of an amino acid.3. Urea is eliminated by the kidney.4. Ammonia and keto acids are formed.
A. 2, 4, 1, 3 B. 3, 1, 4, 2 C. 4, 1, 3, 2 D. 2, 3, 1, 4 E. 1, 3, 4, 2
Plasma proteins essential in body defense are the
A) albumins. B) fibrinogens. C) immunoglobulins. D) platelets. E) transport proteins.