問題一覧
1
A patient presents with the inability to extend their arm and wrist. They also claim loss of sensation to the back of the arm and lateral half of the dorsum. The sensation of the distal aspect of digits 1-3, however, is still intact. What peripheral nerve is most likely affected?
Radial Nerve
2
What peripheral nerve innervates the cutaneous region shown below?
Tibial Nerve
3
Which of the following is FALSE regarding postganglionic neurons?
Their axons are myelinated
4
Which of the following is a sympathetic activity?
Vasodilation of cutaneous blood vessels and stimulation of sweat glands and arrector pili muscles.
5
Which of the following is FALSE regarding the spinal cord?
It consists of 14 Sacral Pairs
6
Which of the following is FALSE regarding the spinal cord?
It contains a ventral root ganglion.
7
Which of the following is FALSE regarding the Anterolateral System (Spinothalamic Tract)?
It carries touch, pain, and temperature for the face.
8
In memory consolidation, short-term memory that is converted to new long-term memory is stored in the:
Hippocampus
9
Where does the sciatic nerve branch to become the common fibular nerve and the tibial nerve?
Near the popliteal fossa
10
What nerve innervates most adductor muscles and provides sensory innervation to the superior medial side of the thigh?
Obturator Nerve
11
Muscle Spindles and Golgi Tendon Organs supply the brain with:
Proprioception
12
Which of the following is FALSE regarding nerve receptors to the skin?
Free nerve endings detect deep pressure
13
The cell bodies of the sympathetic neurons are found within the spinal levels of:
T1 to L2 only
14
Which of the following is FALSE regarding sensory pathways?
The Spinocerebellar tract decussates at the level of the brainstem.
15
Which of the following is FALSE regarding motor neurons?
Lower motor neurons are found within the precentral gyrus
16
Which of the following is FALSE regarding memory?
Damage to the olfactory cortex will significantly affect memory of motor skills.
17
Which direct motor tract is involved in controlling movements in the head and neck?
Corticobulbar tract
18
In Angina Pectoris, the pain associated with the inadequate blood flow to the heart is "referred" to the skin.The visceral-sensory impulses are referred to which region of the skin?
Left pectoral region, left medial arm, and left medial forearm.
19
The spinal segment below is most likely from the:
Cervical region
20
What is proprioception?
The sense of position of joint or the amount of stretch of a muscle.
21
What cutaneous region and muscles are innervated by the Median Nerve?
Lateral two-thirds of palm of hand, thumb, index and middle fingers, and the lateral half of ring finger and dorsal tips of the same fibers; Flexor Carpi Radialis and Palmaris Longus
22
Damage to the Femoral Nerve would result in:
Loss of sensation to the anterior and lateral thigh and the ability to extend the knee
23
What cutaneous region and muscles are innervated by the Axillary Nerve?
Inferior Lateral Shoulder; Deltoid and Teres Minor
24
Which tract carries signals involved in the conscious perception of pain, temperature, and touch from the body?
Spinothalamic tract (Anterolateral system)
25
Which tract carries proprioceptive information from the muscles, tendons, and joints of the body to the cerebellum?
Spinocerebellar tract
26
Which tract carries signals involved in 2-point discrimination, proprioception, and pressure from the body?
Dorsal Column-Medial Lemniscal System
27
Which tract carries signals involved in touch, proprioception, pain, and temperature from the head?
Trigeminothalamic tract
28
Which tract carries signals involved in conscious control of skeletal muscles of the body?
Pyramidal System
29
After repeated exposure to human touch, a turtle realizes it is not in danger and is less inclined to draw its head back into its shell. This is an example of:
Habituation
30
After repeated exposure, a dog grows increasing agitated to a source of a loud sound. This is an example of:
Sensitization
31
Your ability to recall the regions of the brain is an example of:
Declarative memory
32
Your ability to remember your pin number based on sequence or patterns alone (you don’t consciously think about the numbers that you press) is an example of:
Procedural memory
33
long-term potentiation, Glutamate binds to ligand-gated __________ channels.
Ca2+
34
In long-term potentiation, what physical change within the membrane occurs with more frequent activation?
More glutamate receptors fuse to the postsynaptic membrane.
35
What is the brachial plexus?
The nerve network for nerves destined to innervate the skin and musculature of the upper limb.
36
What is the lumbosacral plexus?
The nerve network for nerves destined to innervate the skin and musculature of the lower limb.
37
Where are the cell bodies of upper motor neurons located?
Primary motor cortex (on the Precentral gyrus)
38
For questions 46-50, please match the labeled items with their correct function
C,B,A,D,E