Minor U12-type with GU-AG introns (hybrid type)

TLS Online TPP Program

#Id: 5417

#Unit 7. System Physiology – Animal

Protoplasmic astrocytes produce substances that are tropic to neurons, & they help maintain the appropriate concentration of ions & neurotransmitters by taking up K+ & neurotransmitters glutamate & γ-aminobutyrate (GABA)

TLS Online TPP Program

#Id: 5418

#Unit 7. System Physiology – Animal

Ependymal cells are ciliated-epithelial glial cells that develop from radial glia along the surface of the ventricles of the brain and the spinal canal & play a critical role in cerebrospinal fluid homeostasis, brain metabolism, and the clearance of waste from the brain.

TLS Online TPP Program

#Id: 5419

#Unit 7. System Physiology – Animal

Neurons generally have four important zones:

A dendritic zone, where multiple local potential changes generated by synaptic connections are integrated. a site where propagated action potentials are generated. an axonal process that transmits propagated impulses to the nerve endings the nerve endings, where action potentials cause the release of synaptic transmitters.

TLS Online TPP Program

#Id: 5420

#Unit 7. System Physiology – Animal

Types of neurons Based on the number of processes that emanate from their cell body, neurons can be classified as unipolar, bipolar, and multipolar.

TLS Online TPP Program

#Id: 5421

#Unit 7. System Physiology – Animal

Unipolar neurons have one process, with different segments serving as receptive surfaces and releasing terminals.

TLS Online TPP Program

#Id: 5422

#Unit 7. System Physiology – Animal

Bipolar neurons have two specialized processes: a dendrite that carries information to the cell and an axon that transmits information from the cell.