Nervous System
The central nervous system is composed of what
the brain and the spinal cord
The left and right sides of the cerebrum are interconnected by what
the corpus callosum
The malleus and incus function to
amplify sound
The transparent covering of the front of the eye is the
the cornea
Hormones act upon specific target tissues because
A) they interact only with target cells at a synapse. B) they are released next to target tissues, so they cannot interact with other cells. C) target tissues display the appropriate receptor for a particular hormone. D) they can be released only following depolarization of the target cells E) the blood has access to all body tissues.
C
What division of the nervous system provides the central nervous system with information about the outside environment?
sensory division
Control of respiratory rate, heart rate, and blood pressure is integrated through the
medulla oblongata
Sound is amplified by components of the middle ear when they vibrate. When one of these components, the stapes, vibrates, the ________ will vibrate.
the oval window
Color blindness usually results from a decrease in the number of
cones
Insulin helps regulate blood sugar at homeostatic levels by
promoting the entry of glucose into cells
Electrical impulses are transmitted between components of the central nervous system via which one of the following?
internuerons
Conscious thought is associated with the _______________________
cerebral cortex
name the 3 tiny bones of the middle ear in order
malleus, incus, stapes
What happens to the pupil when bright light hits the eye?
the size decreases
Slow pain originating from an internal organ is often perceived as coming from an area of the body totally unrelated to the source. This is known as
referred pain
The central nervous system is enclosed by membranes or meninges called the
dura mater, pita mater, and arachnoid
What part of the brain is associated with emotions and behavior?
the limbic system
Different pitched (high- or low-toned) sounds are discriminated by
hair cells in specific regions of the cochlea
Nearsightedness and farsightedness are caused by the
length of the eyeball
Receptors for fast pain
generally occur in or near skin
________________ division of the nervous system responds during times of stress and the _________________ division of the nervous predominates during the relaxed state.
sympathetic and parasympathetic
The three main anatomical and functional divisions of the brain are the
forebrain, midbrain, hundbrain
Head position and linear acceleration is monitored by what in the ear
Movement of otoliths (crystals) bends hair cells in vestibule
31. The following is a list of structures in the eye through which light passes. Which one of the following answers best describes the order in which light passes through or hits each structure?
1. lens 2. Pupil 3. Cornea 4. aqueous humor 5. retina
3, 4, 2, 1, 5
list the 5 categories of taste
sweet, salty, sour, bitter, umami