List the Three Primary Germ Layers,and List Three Structures in the Body

question 117

Essay

List the three primary germ layers,and list three structures in the body that develop from each layer.

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Definitions:

Loop Of Henle

U-shaped part of the nephron extending from the proximal to the distal convoluted tubule and consisting of descending and ascending limbs. Some of the loops of Henle extend into the renal pyramids.

Micturition Reflex

A reflex involving the spinal cord and brain that controls the act of urination, or voiding the bladder.

Pelvic Nerves

Nerves located within the pelvic region, involved in controlling the bladder, bowel, and sexual functions.

Sacral Segments

Portions of the spinal cord that correspond to the sacral part of the vertebral column, which is crucial for transmitting nerve signals to and from the lower parts of the body.