front 1 What are the main functions of the Integumentary System? | back 1 Protects the body, regulates temperature, prevents water loss, houses sensory receptors. |
front 2 What are the main functions of the Skeletal System? | back 2 Provides structure, support, and protection; stores minerals; produces blood cells. |
front 3 What are the main functions of the Muscular System? | back 3 Allows movement, maintains posture, produces heat. |
front 4 What are the main functions of the Nervous System? | back 4 Detects stimuli, processes information, and controls responses. |
front 5 What are the main functions of the Endocrine System? | back 5 Produces hormones that regulate metabolism, growth, reproduction, and homeostasis. |
front 6 What are the main functions of the Cardiovascular System? | back 6 Transports blood, nutrients, gases, and wastes. |
front 7 What are the main functions of the Lymphatic/Immune System? | back 7 Defends against infection and disease; returns fluid to bloodstream. |
front 8 What are the main functions of the Respiratory System? | back 8 Delivers oxygen to blood and removes carbon dioxide. |
front 9 What are the main functions of the Digestive System? | back 9 Breaks down food, absorbs nutrients, eliminates waste. |
front 10 What are the main functions of the Urinary System? | back 10 Eliminates nitrogenous waste, regulates water and electrolyte balance, maintains pH. |
front 11 What are the main functions of the Reproductive System? | back 11 Produces gametes (sperm and eggs); supports development of offspring. |
front 12 What is homeostasis? | back 12 The body’s ability to maintain stable internal conditions despite external changes. |
front 13 What is a negative feedback loop? | back 13 A process that reduces or shuts off the original stimulus to maintain balance. |
front 14 What is an example of a negative feedback loop? | back 14 Body temperature regulation (sweating when hot, shivering when cold). |
front 15 What is a positive feedback loop? | back 15 A process that enhances the original stimulus and drives events to completion. |
front 16 What is an example of a positive feedback loop? | back 16 Blood clotting or childbirth contractions. |
front 17 What does anterior (ventral) mean? | back 17 Toward the front. |
front 18 What does posterior (dorsal) mean? | back 18 Toward the back. |
front 19 What does superior mean? | back 19 Toward the head / above. |
front 20 What does inferior mean? | back 20 Away from the head / below. |
front 21 What does medial mean? | back 21 Toward the midline. |
front 22 What does lateral mean? | back 22 Away from the midline. |
front 23 What does proximal mean? | back 23 Closer to the point of attachment. |
front 24 What does distal mean? | back 24 Farther from the point of attachment. |
front 25 What does superficial mean? | back 25 Toward the surface. |
front 26 What does deep mean? | back 26 Away from the surface. |
front 27 What does the frontal (coronal) plane divide? | back 27 The body into anterior and posterior sections. |
front 28 What does the sagittal plane divide? | back 28 The body into left and right parts. |
front 29 What does the midsagittal (median) plane divide? | back 29 The body into equal left and right halves. |
front 30 What does the parasagittal plane divide? | back 30 The body into unequal left and right portions. |
front 31 What does the transverse (horizontal) plane divide? | back 31 The body into superior and inferior parts. |
front 32 What are the four major elements that make up 96% of the human body? | back 32 Oxygen (O), Carbon (C), Hydrogen (H), and Nitrogen (N). |
front 33 Name some other important elements in the human body. | back 33 Calcium (Ca), Phosphorus (P), Potassium (K), Sodium (Na), Chlorine (Cl), Magnesium (Mg), Iron (Fe). |
front 34 What are the three subatomic particles and their charges? | back 34 Protons (+, in nucleus), Neutrons (neutral, in nucleus), Electrons (–, orbiting nucleus). |
front 35 What does the atomic number represent? | back 35 The number of protons in an atom (defines the element). |
front 36 What does atomic mass represent? | back 36 The total number of protons and neutrons. |