The skeletal system bones together form the supporting framework of body is called skeletal system an infant has 213 in skeleton but 206 human skeleton system we ve been playing name the body part and variations on head shoulders knees toes with this silly yes but my 2 year old can now point to her.
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Integumentary system– ( skin, hair, nails) Forms the external body covering and protects deeper tissues from injury. Houses cutaneous receptors, sweat glands, oil glands, and synthesizes vitamin D.
Skeletal system– ( bones, joints) Supports and protects the body’s organs. Provides a framework muscles use (movement). Bones also store minerals and create blood cells.
Muscular system– ( skeletal muscles) Maintains posture and produces movement (locomotion). Produces heat. Lymphatic system– ( red bone marrow, thymus, lymphatic vessels, thoracic duct, spleen, lymph nodes) Houses white blood cells (lymphocytes) involved in immunity.
Returns leaked fluid from blood vessels to the blood and disposes debris within the lymphatic stream. Respiratory system– ( nasal cavity, pharynx, larynx, trachea, bronchus, lung) Removes carbon dioxide and continually supplies blood with oxygen. Gaseous exchanges occur in the respiratory system (lungs).
Digestive system– ( oral cavity, esophagus, liver, stomach, small intestine, large intestine, rectum, anus) Breaks down food to be absorbed and eliminates indigestible waste. Nervous system– ( brain, spinal cord, nerves) Control system of the body, responds to internal and external changes, activates muscles and glands. Endocrine system– ( pineal gland, pituitary gland, thyroid gland, thymus, adrenal gland, pancreas, ovary, testis) Glands from the endocrine system secrete hormones that regulate many processes like growth, metabolism, and reproduction. Cardiovascular system– ( heart, blood vessels) The heart pumps blood and blood vessels transport it.
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Blood carries oxygen, carbon dioxide, nutrients, waste and more throughout the body. Urinary system– ( kidney, ureter, urinary bladder, urethra) Eliminates nitrogenous wastes from the body.
Regulates acid-base, electrolyte and WATER balance of blood. Reproductive systems MALE ( prostate gland, penis, testis, scrotum, ductus deferens) FEMALE ( Mammary glands, ovary, uterus, vagina, uterine tube) The main function of the reproductive system is to produce offspring. Sex hormone and sperm are produced by the male testes. Male ducts and glands help deliver the sperm. Ovaries produce female sex hormones and eggs.
Other female reproductive structures serve as sites of fertilization and development. For instance, the mammary glands produce milk for the newborn.
The word 'endocrine' means to 'secrete.' And endocrine glands are internal secretions within your body. Endocrine glands pertain to glands that secrete directly into your bloodstream. The endocrine glands include:. Hypophysis (pituitary gland).
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Parathyroid glands. Thyroid gland. Adrenal (supra-renal) glands. Gonads (ovaries and testes). Islets (Islands) of Langerhans of the Pancreas An endocrine gland is a ductless gland that produces an internal secretion discharged into the blood or lymph system, which is then circulated to all the other parts of the body.
It's like the secretions from the endocrine glands hitch a ride on a boat in the bloodstream so they can get to the place that they need to be. And timing is everything. They don't want to 'miss the boat.' (smiles) Hormones are the active principles of the endocrine glands and they produce effects on tissues sometimes near and sometimes far away from where they originated.
The word hormone means 'urging on' and that is exactly what hormones do. They urge on and actually cause things to start happening. They are the keys that unlock certain doors in the body. Hormones that are secreted by the ductless glands may have a specific effect on an organ or tissue or a general effect on the entire body, as in the case of thyroid hormone, which affects the rate of metabolism. In addition, the hypothalamus produces 'releasing hormones' that exert an effect on the production of some hormones. Those hormones are produced just to effect other hormones.
Other structures such as the gastro-intestinal mucosa and the placenta also have an endocrine function. The physiological processes that are affected by hormones are rate of metabolism and the metabolism of specific substances, growth and developmental processes, the secretory activity of other endocrine glands, the development and functioning of the reproductive organs, sexual characteristics and libido, the development of personality and higher nervous functions, the ability of the body to meet conditions of stress and resistance to disease. Endocrine dysfunction may result from hyposecretion. This is where an inadequate amount of the hormone(s) is secreted, or hypersecretion, where excessive amounts of hormones are produced. Secretion of endocrine glands may be under nervous control, under control of chemical substances in the blood, or, in some cases, under control of other hormones. Many pathological conditions are the result of or associated with the malfunctioning of the endocrine glands. Your body has over 30 incredible hormones busy regulating:.
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Your body temperature. When you are hungry or satiated. When you sleep. Your body weight. How you break down and utilize food. When you start puberty.
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How you handle stress. When you adrenaline kicks in during an emergency. How much and when you will grow JUST THE FACTS:. Girls begin puberty between ages 9 - 13. Boys begin puberty between ages 10 - 15.