Human Body Mixed Practice
| # | Answer |
|---|---|
| 1 | Epithelial tissue, connective tissue, muscle tissue, and nervous tissue. |
| 2 | The cell. |
| 3 | The respiratory system. |
| 4 | They transport oxygen around the body. |
| 5 | The heart. |
| 6 | It supports the body, protects organs, and helps movement. |
| 7 | A tendon. |
| 8 | Digestion. |
| 9 | The liver. |
| 10 | In the small intestine. |
| 11 | They help blood clot to prevent excessive bleeding. |
| 12 | The cerebellum. |
| 13 | It helps move air into and out of the lungs by changing the volume of the chest cavity. |
| 14 | The aortic valve. |
| 15 | They filter wastes from the blood and help regulate water and salt balance. |
| 16 | The nervous system. |
| 17 | They defend the body against pathogens and infection. |
| 18 | A ball-and-socket joint. |
| 19 | They have a large surface area, thin walls, and a good blood supply. |
| 20 | Cerebrospinal fluid. |
| 21 | The small intestine is longer to provide more surface area and time for digestion and absorption of nutrients. |
| 22 | Nose or mouth, trachea, bronchi, bronchioles, and then alveoli. |
| 23 | Homeostasis is the maintenance of stable internal conditions in the body. |
| 24 | Body temperature, blood glucose level, or water balance. |
| 25 | It absorbs water and forms feces. |
| 26 | They have a biconcave shape, no nucleus, and contain hemoglobin, which helps carry oxygen. |
| 27 | Arteries carry blood away from the heart, while veins carry blood toward the heart. |
| 28 | To prevent blood from flowing backward, especially in the limbs. |
| 29 | It contracts and flattens, increasing chest volume. |
| 30 | Insulin helps lower blood glucose by allowing cells to take in glucose. |
| 31 | The skin acts as a barrier against pathogens, prevents water loss, and helps protect against physical damage and UV radiation. |
| 32 | Because it is made of muscle tissue that contracts to pump blood. |
| 33 | It produces hormones that regulate body processes such as growth, metabolism, and reproduction. |
| 34 | The brain and spinal cord. |
| 35 | Exercise strengthens the heart, improves blood flow, and helps the body deliver oxygen more efficiently. |
| 36 | The respiratory system brings oxygen into the lungs, and the circulatory system carries that oxygen in the blood to body cells. |
| 37 | It is the basic unit of the kidney and filters blood to form urine. |
| 38 | It produces bile for fat digestion and processes nutrients absorbed from the intestine. |
| 39 | Voluntary muscles are under conscious control, while involuntary muscles work automatically. |
| 40 | The heart muscle or smooth muscle in the intestines. |
| 41 | Cells need oxygen and glucose for cellular respiration, which releases energy for life processes. |
| 42 | Mucus traps dust and microbes, and cilia move the mucus out of the airways. |
| 43 | It recognizes the pathogen and uses white blood cells and other defenses to destroy it or stop it from spreading. |
| 44 | It releases hormones like insulin into the blood and also produces digestive enzymes that go into the small intestine. |
| 45 | A long bone is strong and lightweight, with compact bone for support and spongy bone to reduce weight and help with blood cell formation. |
| 46 | Both increase to deliver more oxygen and glucose to cells and remove carbon dioxide faster. |
| 47 | The hypothalamus helps regulate body temperature, hunger, thirst, and hormone control to maintain internal balance. |
| 48 | They have thin moist walls, a large surface area, and close capillary networks, which allow fast diffusion. |
| 49 | The body could become dehydrated or overhydrated, and waste products could build up in the blood. |
| 50 | After a meal, the digestive system breaks food into nutrients and absorbs them in the small intestine. The circulatory system carries these nutrients in the blood to body cells. The respiratory system supplies oxygen, which cells use with the nutrients to release energy for growth, repair, and activity. |