Which of the Following Occurs at an Excitatory Synapse

question 4

Multiple Choice

Which of the following occurs at an excitatory synapse

• A)There is increased permeability of the subsynaptic membrane to both Na⁺ and K⁺.
• B)A small hyperpolarization occurs.
• C)An action potential in the presynaptic neuron always causes an action potential in the postsynaptic neuron.
• D)The presynaptic neuron increases the permeability of the subsynaptic membrane of the postsynaptic cell to K⁺ only.

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Definitions:

Posterior Pituitary

The rear part of the pituitary gland that stores and releases hormones like antidiuretic hormone (ADH) and oxytocin, received from the hypothalamus.

Oxytocin

A hormone that plays a role in social bonding, sexual reproduction, childbirth, and the period after childbirth.

Blood Sugar

The concentration of glucose in the blood, an important indicator of metabolic health and diabetes management.

Thyroid Hormones

Chemical substances produced by the thyroid gland, essential for regulating the body's metabolism, energy, and growth.