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esophagus: stomach: small intestine: large intestine: rectum: click on:…

Question

esophagus: stomach: small intestine: large intestine: rectum: click on: endocrine system 22. what is the endocrine system? 23. what are hormones? 24. what are glands? 25. name at least 3 major glands 26. what does the endocrine system do? click on: immune system 27. your immune system is made up of 28. what is passive immunity? click on: lungs and respiratory system 29. describe the role of oxygen and carbon dioxide in the respiratory system? 30. what is the trachea? 31. what is the larynx? 32. what are the bronchi? 33. what are the alveoli? click on: skin, hair, and nails and click on the diagram. define each part. 34. epidermis: dermis: sweat gland: nerve: blood vessels: 35. why do people get goose bumps? 36. name at least 2 fun facts about skin 37. what is the proper name for the skin system? click on: spleen and lymphatic system 38. what does the lymphatic system do? 39. what does the spleen do? 40. what is tonsillitis?

Explanation:

Brief Explanations
  1. The endocrine system is a collection of glands that produce and secrete hormones directly into the bloodstream to regulate various bodily functions such as growth, metabolism, and reproduction.
  2. Hormones are chemical messengers produced by endocrine glands. They travel in the bloodstream to target cells or organs and regulate physiological processes.
  3. Glands are organs that produce and release substances for use in the body or for excretion. Endocrine glands secrete hormones directly into the blood, while exocrine glands secrete substances through ducts.
  4. Three major glands are the pituitary gland (controls other endocrine glands and many body functions), the thyroid gland (regulates metabolism), and the adrenal glands (produce hormones like adrenaline and cortisol).
  5. The endocrine system regulates growth, development, metabolism, reproduction, and homeostasis by secreting hormones.
  6. The immune system is made up of cells (such as white - blood cells), tissues (like lymph nodes), and organs (such as the spleen) that work together to defend the body against pathogens.
  7. Passive immunity is the temporary immunity that results from the transfer of antibodies, e.g., from mother to fetus during pregnancy or through the administration of antibodies.
  8. In the respiratory system, oxygen is inhaled and diffuses from the alveoli into the bloodstream to be transported to cells for cellular respiration. Carbon dioxide, a waste product of cellular respiration, diffuses from the blood into the alveoli and is exhaled.
  9. The trachea, also known as the windpipe, is a cartilaginous and membranous tube that connects the larynx to the bronchi, allowing air to pass into and out of the lungs.
  10. The larynx is a cartilaginous structure in the neck that contains the vocal cords. It is involved in breathing, producing sound, and protecting the trachea against food aspiration.
  11. The bronchi are the two main branches of the trachea that lead into each lung. They further divide into smaller bronchioles and are responsible for conducting air to the alveoli.
  12. The alveoli are tiny, thin - walled sacs in the lungs where gas exchange occurs. Oxygen diffuses into the blood and carbon dioxide diffuses out of the blood.
  13. Epidermis: The outermost layer of the skin, providing a protective barrier. Dermis: The layer beneath the epidermis, containing blood vessels, nerves, hair follicles, and sweat glands. Sweat Gland: Glands that produce sweat to regulate body temperature and excrete waste. Nerve: Structures that transmit sensory and motor signals. Blood Vessels: Tubes that carry blood throughout the body, delivering nutrients and oxygen to tissues and removing waste.
  14. People get goose bumps when the arrector pili muscles, which are attached to hair follicles, contract. This is an involuntary response often triggered by cold or strong emotions, and it causes the hair to stand up.
  15. Fun facts about skin: It is the largest organ of the body. It can regenerate itself every 28 days on average.
  16. The proper name for the skin system is the integumentary system.
  17. The lymphatic system helps maintain fluid balance in the body, absorbs fats from the digestive tract, and defends the body against pathogens by producing and storing lymphocytes.
  18. The spleen filters the blood, removes old or damaged blood cells, stores platelets and white blood cells, and helps fight certain bacteria.
  19. Tonsillitis is an inflammation of the tonsils, usually caused by a viral or bacterial infection, which can lead to symptoms such as sore throat, difficulty…

Answer:

  1. A collection of glands that produce and secrete hormones directly into the bloodstream to regulate bodily functions.
  2. Chemical messengers produced by endocrine glands that regulate physiological processes.
  3. Organs that produce and release substances for use in the body or for excretion.
  4. Pituitary gland, thyroid gland, adrenal glands.
  5. Regulates growth, development, metabolism, reproduction, and homeostasis by secreting hormones.
  6. Cells, tissues, and organs (e.g., white - blood cells, lymph nodes, spleen).
  7. Temporary immunity from transferred antibodies.
  8. Oxygen is inhaled for cellular respiration, carbon dioxide is exhaled as a waste product.
  9. A cartilaginous and membranous tube connecting larynx to bronchi for air passage.
  10. A cartilaginous structure containing vocal cords, involved in breathing, sound production, and protection.
  11. Main branches of trachea leading into lungs and conducting air to alveoli.
  12. Tiny sacs in lungs where gas exchange occurs.
  13. Epidermis: Outermost protective layer. Dermis: Layer with blood vessels, etc. Sweat Gland: Produces sweat. Nerve: Transmits signals. Blood Vessels: Carry blood.
  14. Caused by contraction of arrector pili muscles attached to hair follicles.
  15. It is the largest organ; it regenerates every 28 days on average.
  16. Integumentary system.
  17. Maintains fluid balance, absorbs fats, defends against pathogens.
  18. Filters blood, removes old cells, stores cells, fights bacteria.
  19. Inflammation of the tonsils, usually due to viral or bacterial infection.