Major Calyces Are

question 4

Multiple Choice

Major calyces are

• A) large branches of the renal pelvis.
• B) expanded ends of nephrons.
• C) basic functional layers of the kidney.
• D) conical structures that are located in the renal medulla.
• E) the expanded ends of renal pyramids.

---

Definitions:

Myelinated axons

Nerve fibers covered in myelin, a protective sheath that speeds up the transmission of electrical signals in the nervous system.

White matter

Tissue in the brain and spinal cord made up primarily of nerve fibers and is responsible for communication between different brain regions and between the brain and the spinal cord.

Neurotransmitter

A chemical within the vesicles of the synaptic knob that is released into the postsynaptic structures when a nerve impulse reaches the synaptic knob.

Synaptic knob

The expanded region at the end of an axon terminal, where neurotransmitters are released to communicate with other neurons or muscle cells.