GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Identify which are (2) motor tracts
A
Reticulospinal
B
Spinocerebellar
C
Corticospinal
D
Spinothalamic
Explanation: 

Detailed explanation-1: -Divided into the anterior corticospinal tract (supplies axial muscles) and the lateral corticospinal tract (supplies muscles of the limbs).

Detailed explanation-2: -There are two divisions of the corticospinal tract, the lateral corticospinal tract and the anterior corticospinal tract. The lateral corticospinal tract neurons cross the midline at the level of the medulla oblongata, and controls the limbs and digits.

Detailed explanation-3: -The corticospinal tract, AKA, the pyramidal tract, is the major neuronal pathway providing voluntary motor function. This tract connects the cortex to the spinal cord to enable movement of the distal extremities.

Detailed explanation-4: -The neurons that travel in the corticospinal tract are referred to as upper motor neurons; they synapse on neurons in the spinal cord called lower motor neurons, which make contact with skeletal muscle to cause muscle contraction.

Detailed explanation-5: -Corticoreticular fibers. Pontine (medial) reticulospinal tract. Medullary (lateral) reticulospinal tract.

There is 1 question to complete.