Spine anatomy W1

Question 1

Out of T1 weighted and T2 weighted, which one shows the fluid as white?

Answer 1

T2 W

Question 2

Differentiate between kyphosis and lordosis

Answer 2

Kyphosis: outward curvature
Lordosis: inward curvature

Question 3

what is scoliosis?

Answer 3

Abnormal lateral, S-haped curvature of the spine

Question 4

what is the surface landmark for T3?

Answer 4

At the level of the base of the spine of the scapula

Question 5

what is the surface landmark for T7?

Answer 5

At the level of the inferior angle (tip) of the scapula

Question 6

what is the surface landmark for L4/5?

Answer 6

at the level of a line drawn between the tips of the iliac crest

Question 7

where does spinal cord terminate?

Answer 7

L1/2

Question 8

What movements occur at the cervical spinal region?

Answer 8

Flexion and extension

Question 9

What movements occur at the lumbar spinal region?

Answer 9

Flexion and extension

Question 10

What movements occur at the thoracic spinal region?

Answer 10

rotation

Question 11

what spinal regions does lateral flexion occur at?

Answer 11

Cervical, thoracic, lumbar

Question 12

What movements occurs at the Atlanta-occipital and Atlanta-axial joints?

Answer 12

Head nodding and rotation

Question 13

what is a dermatome?

Answer 13

Area of skin supplied by a specific spinal nerve root

Question 14

identify the sensory areas and dermatomes of C5-T1

Answer 14

In the upper limb

C5: anterolateral shoulder
C6: thumb
C7: middle finger
C8: pinkie finger
T1: inner forearm

Question 15

how many pairs of spinal nerves are there?

Answer 15

31

Question 16

identify the sensory areas and dermatome of L1-S5

Answer 16

L1: Hip and groin area
L2: inside of thigh 
L3: medial knee
L4: medial ankle and big toe
L5: lateral leg and dorsal of foot
S1: lateral foot
S2: popliteal fossa + posterior aspect of thigh
S3: medial aspects of buttocks
S4-5: perianal area

Question 17

where are upper motor neurons found and what do they do?

Answer 17

Found in motor region of cerebral cortex and brainstem.

Transmits impulses from the brain to synapses of lower motor neurons

Question 18

where are LOWER motor neurons found and what do they do?

Answer 18

Found in brainstem and spinal cord.

Motor neuron that transmits nerve impulses from upper motor neurons to muscles