Damage to the ventral roots of the first five thoracic spinal nerves on the right side of the body would interfere with the ability to
A) dilate the right pupil.
B) constrict the right pupil.
C) dilate the left pupil.
D) constrict the left pupil.
E) smile and frown.
A
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When a neurotransmitter like acetylcholine is acting in an excitatory manner which of the following is likely a result of the acetylcholine acting on the post synaptic cell?
A) Chemically gated chloride channels will open. B) Chemically gated potassium channels will open. C) Chemically gated sodium channels will open. D) Chemically gated sodium channels will be closed.
Which hormone stimulates the production of testosterone?
A. Gonadotropin-releasing hormone B. Follicle-stimulating hormone (FSH) C. Prolactin D. Luteinizing hormone (LH) E. Oxytocin
Compare the types of cells that lymphoid stem cells and myeloid stem cells produce
A) Lymphoid stem cells give rise to lymphocytes. Myeloid stem cells give rise to all the formed elements except lymphocytes. B) Lymphoid stem cells give rise to all the formed elements except lymphocytes. Myeloid stem cells give rise to lymphocytes. C) Lymphoid stem cells give rise to all of the white blood cells. Myeloid stem cells give rise to the red blood cells and platelets. D) Lymphoid stem cells give rise to all of the white blood cells and platelets. Myeloid stem cells give rise to the red blood cells. E) Lymphoid stem cells give rise to the white blood cells and the red blood cells. Myeloid stem cells give rise to the platelets.
Of the following muscles of the thigh, which one does NOT pull the leg forward?
A. biceps femoris B. rectus femoris C. vastus lateralis D. vastus medialis E. vastus intermedius