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Kristina Esteban
Anatomy Weeks 6-12
| Question | Answer |
|---|---|
| What is the main structural difference between the axial and appendicular skeletons? | The axial skeleton includes the skull, vertebral column, and thoracic cage. The appendicular skeleton includes the limbs and shoulder/pelvic girdles. |
| What is the function of the myelin sheath in neurons? | It insulates the axon and speeds up nerve impulse conduction through saltatory conduction. |
| What are dendrites and what do they do? | Dendrites receive incoming signals from other neurons and carry them toward the cell body. |
| What is the difference between the CNS and PNS? | CNS: brain and spinal cord for integration. PNS: all nerves outside CNS for sensory and motor functions. |
| What is the role of the autonomic nervous system (ANS)? | It controls involuntary actions such as heart rate, digestion, and glandular activity. |
| What is the primary function of the endocrine system? | It secretes hormones that regulate growth, metabolism, reproduction, and homeostasis. |
| What is the job of the cardiovascular system? | To transport blood, deliver oxygen/nutrients, and remove waste products. |
| What is the function of lymph nodes? | They filter lymph, remove pathogens, and house immune cells. |
| What is the main structure responsible for gas exchange in the lungs? | The alveoli, where oxygen enters the blood and carbon dioxide leaves. |
| How do the respiratory and circulatory systems work together? | Respiratory system oxygenates blood; circulatory system transports it and returns CO₂ to lungs. |