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Antanya Metusala
StudyStack 1 Anatomy Week 6-12
| Question | Answer |
|---|---|
| What are the two main divisions of the muscular system? | Axial muscles (support and position the axial skeleton) and appendicular muscles (support and move the limbs). |
| What is the primary function of the axial muscles? | To support and move the head, neck, and trunk, and assist in breathing. |
| What is the primary function of the appendicular muscles? | To move and stabilize the pectoral and pelvic girdles and limbs. |
| What is a motor unit? | A single motor neuron and all the muscle fibers it controls. |
| What is the structural and functional unit of the nervous system? | The neuron. |
| What are neuroglia (glial cells)? | Supporting cells that protect, nourish, and maintain neurons. |
| What are the main parts of the central nervous system (CNS)? | The brain and spinal cord. |
| What are the main parts of the peripheral nervous system (PNS)? | Cranial nerves, spinal nerves, and peripheral nerves connecting the CNS to the body. |
| What does the autonomic nervous system (ANS) control? | Involuntary functions such as heart rate, digestion, and glandular activity. |
| What are the two divisions of the autonomic nervous system? | Sympathetic (“fight or flight”) and parasympathetic (“rest and digest”). |