Neurotransmitters

question 103

Multiple Choice

Neurotransmitters:

• A)are chemical messengers that are secreted into the bloodstream primarily by endocrine glands.
• B)are present in extremely small quantities in the brain.
• C)are constantly changing their basic molecular shape as the human brain adapts to new experiences.
• D)compete with sodium and potassium ions for the receptor sites on the surrounding neurons.

---

Definitions:

Routing Number

A nine-digit code used in the United States to identify a financial institution in a transaction.

ABA Number

A fraction appearing in the upper-right corner of all printed checks that identifies the geographic area and specific bank on which the check is drawn.

Pay to the Order

A financial instruction found on a check, directing the bank to pay a specified amount to the individual or entity named.

Certified Check

A type of check for which the issuing bank guarantees the availability of funds by verifying the drawer's signature and setting aside the check amount from the drawer's account.