A middle-aged couple is seeing a sex therapist for the first time to determine the cause of some of their recent difficulties. The husband tells the therapist that he no longer has sensation in his scrotum after a race car accident. Which of the following nerves carries undamaged sensory nerve fibers?
A middle-aged man at a nursing home is known to have degenerative brain disease. When cerebrospinal fluid (CSF) is withdrawn by lumbar puncture for further examination, which of the following structures is most likely penetrated by the needle?
A man in his forties with a neuromuscular autoimmune disease has another attack at home. His wife calls the doctor’s office because he is unable to speak. Once at the office, he is unable to open his jaw because of paralysis of which of the following muscles?
A middle-aged coal miner injures his back after an accidental explosion. His magnetic resonance imaging (MRI) scan reveals that his spinal cord has shifted to the right because the lateral extensions of the pia mater were torn. Function of which of the following structures is most likely impaired?
A middle-aged couple is having difficulty conceiving a child. Their physician at a reproduction and fertility clinic explains to them that:
A knife wound has severed the oculomotor nerve in a 46-year-old man. Which of the following conditions will occur because of this injury?
A hiker falls on her shoulder, resulting in a chipping off of the lesser tubercle of the humerus. Which of the following structures would most likely have structural and functional damage?
A biomedical engineer would like to reconstruct the arm of a young boy who underwent amputation to treat a life-threatening infection. In designing the prosthetic arm, the engineer will need to know that which of the following muscles flexes the elbow and is innervated by the radial nerve?
A cyclist falls from his bike in an accident and gets a deep gash that severs the superficial peroneal nerve near its origin. Which of the following muscles is paralyzed?
A 9-year-old boy with ASD presents to a pediatrician. This congenital heart defect shunts blood from the left atrium to the right atrium and causes hypertrophy of the right atrium, right ventricle, and pulmonary trunk. Which of the following veins opens into the hypertrophied atrium?