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A&P (Weeks 1-6 topics) flashcards
| Question | Answer |
|---|---|
| What are the three planes of body sectioning? | Sagittal, frontal (coronal), and transverse planes. |
| Which system transports oxygen and nutrients? | The circulatory (cardiovascular) system, through the heart and blood vessels |
| What is diffusion? | The movement of molecules from high to low concentration without energy—nature’s effortless balancing act. |
| What is osmosis? | The diffusion of water through a selectively permeable membrane to equalize concentration. |
| What is the primary function of the lymphatic system? | To defend against infection and maintain fluid balance in tissues. |
| What are the main body cavities? | Dorsal cavity (cranial & spinal) and ventral cavity (thoracic & abdominopelvic). |
| Which system transports oxygen and nutrients? | The circulatory (cardiovascular) system, through the heart and blood vessels |
| What is a neuron? | A specialized nerve cell that sends and receives messages—like a tiny electrical messenger. |
| What is the liver’s key function? | To detoxify blood, produce bile, and regulate nutrients. |
| what is hemoglobin? | A protein in red blood cells that binds oxygen for transport. |
| What is the spinal cord’s main job? | To relay messages between the brain and the rest of the body, and to control reflexes. |
| What is the endocrine system’s purpose? | To release hormones that regulate growth, metabolism, and homeostasis. |
| Name the levels of structural organization in the body. | Chemical → Cellular → Tissue → Organ → System → Organism |
| What does the integumentary system include? | Skin, hair, nails, and glands that protect and regulate body temperature. |
| Which system provides body movement and generates heat? | The muscular system |