A Ball of Identical Cells That Haven't Yet Begun to Take

question 166

Multiple Choice

A ball of identical cells that haven't yet begun to take on a specific function during early pregnancy is called a(n)

• A)blastocyst.
• B)teratogen.
• C)embryo.
• D)zygote.

Understand the anatomical location and function of muscles that move the head.

Describe the action and anatomy of specific muscles of the head and neck that elevate ribs and flex and rotate the neck.

Distinguish the unique muscle of mastication responsible for depressing and protracting the mandible.

Recognize the roles of muscles in speech and swallowing.

---

Definitions:

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of the various opium poppy plants.

THC

Tetrahydrocannabinol, the principal psychoactive constituent of cannabis, responsible for its mind-altering effects.

Active Ingredient

The component of a drug or substance that is biologically active and responsible for its effects on the body.

Marijuana

A psychoactive drug from the Cannabis plant used for medical or recreational purposes, known for its effects on mood and perception.