The transparent central anterior portion of the sclera through which light enters the eye is called the:
A) cornea
B) choroid
C) pupil
D) iris
E) retina
Answer: A) cornea
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The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule, allowing transcription of both strands.
Answer the following statement true (T) or false (F)
When the popliteal vein reaches the femur, it becomes the ________ vein
A) femoral B) deep femoral C) internal iliac D) external iliac E) lumbar
Being in car accident may cause the steering wheel to hit you very forcefully in the chest. If the damage is severe enough, the ribs may break and puncture the thoracic cavity. What is such an injury called, and what would have been the symptoms and the anatomical injuries?
What will be an ideal response?
Which of the following would occur if you touched a hot object with your right hand?
A. A stretch reflex would be triggered that would cause contraction of extensor muscles in the right arm. B. A withdrawal reflex would be triggered by nociceptors that would stimulate contraction of flexor muscles in the right arm. C. Reflex mechanisms would stimulate contraction of the extensor muscles of the right arm. D. A withdrawal reflex would be triggered by stretch receptors that would inhibit contraction of extensor muscles of the right arm. E. Nociceptors send pain information to the cerebral cortex, and descending activation of alpha motor neurons to extensor muscles would make you withdraw your right hand from the object.