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Integumentary System (skin)
The Integumentary System includes the skin, hair and nails and is the human body's largest organ system.
2,086 Questions
Are all human skin cells alive?
No, not all human skin cells are alive. The outermost layer of the skin, known as the stratum corneum, is made up of dead skin cells that serve as a protective barrier for the body. These cells are constantly shedding and being replaced by new cells underneath.
What organ system includes the hair nails and skin?
The integumentary system includes the hair, nails, and skin.
Integumentary system
Which stratum is the tough outer layer of the skin?
The stratum corneum is the tough outer layer of the skin.
The outer layer of the skin and the plant is called the?
The outer layer of the skin is called the epidermis, and the outer layer of a plant is called the epidermis as well. Both serve protective functions for their respective organisms.
What sends and receives messages from all parts of the body?
The nervous system sends and receives messages from all parts of the body. It consists of the brain, spinal cord, and neurons that transmit electrical impulses to coordinate various bodily functions and responses.
Where is the epidermis of the leaf located?
it is the outer most layer of the leave and so covers the leave surface except at the stomata
Where is the vascular region of the integumentary system?
The vascular region of the integumentary system is located in the dermis layer of the skin. It consists of a network of blood vessels that supply nutrients and oxygen to the skin cells, as well as help regulate body temperature through blood flow.
Why does exposure to sunlight darken skin?
They used to say that a good healthy tan was good for you. It is however, not.The darkening of the skin is actually the cells burning or toasting. Nice thought huh? Too much sun can and does promote skin cancer which can be life threatening. Melonoma is a very dangerous type of skin cancer that if left untreated and checked can kill.
Yes, perspiration does contain urea. Urea is one of the waste products excreted in sweat, along with salt and water.
Where do new skin cells come from?
New skin cells are generated in the deepest layer of the skin called the basal layer. As these cells mature, they move up through the layers of the epidermis, eventually reaching the surface of the skin. The turnover of skin cells is a continuous process, with old cells shedding and being replaced by new ones.
The middle skin of leaves is called?
The middle skin of leaves is called the mesophyll, which consists of two layers - the palisade parenchyma and spongy parenchyma. These layers are where photosynthesis primarily occurs in plants.
What are the functions of the acid mantle?
The acid mantle helps to maintain the skin's pH balance, which is important for protecting against harmful microorganisms and maintaining healthy skin flora. It also acts as a barrier to prevent moisture loss and protect the skin from environmental damage.
In the integumentary system what is considered dead cells?
stratum corneum in thin skin and stratum lucidum in the thick skin
What causes the yellow coloring in Asian skin?
Some Asians have yellow skin. Other Asians have brown skin. It depends on what part of Asia they are from. For example, if you are Korean you probably have yellow skin but if you are Indian you probably have brown skin.
Yes, the hypodermis is vascular and contains blood vessels that supply nutrients and oxygen to the skin tissues. These blood vessels also help regulate body temperature by constricting or dilating in response to external conditions.
How does a nerve impulse travel down the neuron to another neuron?
By a release & subsequent diffusion of chemicals called neurotransmitters across a very small gap between neurons, called a synapse.
How neurotransmitters are released:As an impulse reaches an end of a neuron, called an axon terminal, the impulse opens ion pores in that axon terminal which allows Calcium ions to enter, which cause the movement of small membrane bounded packets of neurotransmitter chemicals, called vesicles (like tiny water balloons), to move to the cell membrane, where the vesicles fuse into the cell membrane, thus releasing the contents, the neurotransmitters, into the small space (the synaptic cleft) between the axon terminal and the dendrite of the post-synaptic neuron (the neuron the impulse is traveling to). What neurotransmitters do when they reach the post-synaptic neuron:The post-synaptic neuron has many structures each of which are like a combination of a "well", and an open and close able tunnel. The "well" (or hole with a bottom) is a RECEPTOR for the neurotransmitter chemical, in that the neurotransmitter FITS into that well like a key into a lock. And when a neurotransmitter comes to (by diffusion) and enters that well, it affects the shape of the companion tunnel (ION PORE), such that the ion pore OPENS, thus allowing Sodium ions to enter the post-synaptic neuron (normally at a dendrite, the manifold tiny input structures for a neuron). original answer:Nerve impulse travelingThe impulse is actually an electrical current which 'flows' along the nerves cells their 'branches' dendrites and the junctions between nerves but it is not so simple as a regular electrical wire, because a complex biochemical process is also involved. This process is responsible to the first creation of the electrical current, to its recreation some additional times along its passing (- otherwise it would have died out because of the unbelievable lengths such an impulse travels), and to its recreation in any 'new' nerve cell it reaches.
Read more: How_does_an_impulse_travel_from_one_nerve_to_another
How do you keep your integumentary system healthy?
As people age, dramatic changes take place in the integumentary system. The epidermis thins as basal cells divide less and less. The dermis also thins and its elastic fibers decrease in size. As a result, the skin becomes weaker and starts to sag, forming wrinkles. Melanocytes decrease production of melanin, and the skin becomes pale and hair turns white. Sebaceous glands also decrease production of sebum, causing the skin to become dry and scaly. Blood supply to the skin is reduced and body temperature cannot be regulated as well. Finally, the skin takes longer and longer to repair itself.
Although there is no way to avoid aging of the skin, there are ways to decrease the effects of aging. The loss of elasticity in the skin is speeded up by sunlight. The skin should be shielded from the Sun through the use of sunscreens, sunblocks, and protective clothing. Sunburns are never healthy and should always be avoided. This will also help reduce the risk of skin cancer.
As in all other body systems, the following play a part in keeping the integumentary system operating at peak efficiency: proper nutrition, healthy amounts of good-quality drinking water, adequate rest, regular exercise, and stress reduction. Hair loss and graying are both genetically controlled, but stress can add to both conditions. Exercise and relaxation techniques are proven ways to reduce stress.
Proper daily cleansing of the skin is highly recommended. However, harsh detergents and scrubbing will not make the skin cleaner. In fact, they can injure the skin and cause excessive drying. Greater benefits can be gained by cleaning the skin with gentle soaps or lotions, then applying an appropriate moisturizer to all areas of the body.
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drink lots of water
wear sunscreen before going outside
get vitamin D, C, and B12 almost daily
wash your face
exercise and stretch
don't smoke
wear sunblock
eat healthy or at least try to have good health
The basal layer is the deepest layer of the epidermis, the outermost layer of the skin. It contains cells called basal cells that continuously divide and give rise to new skin cells. These new cells then move up through the layers of the epidermis to the surface of the skin.
Which layer of the skin contains the corneum lucidum granulosum spinosum and basale?
The epidermis is the layer of the skin that contains the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. These layers make up the outermost part of the skin and are responsible for providing protection, regulating temperature, and facilitating the renewal of skin cells.
Where is the hypodermis located?
it is the third layer of skin after your epidermis and dermis then your hypodermis. the hypodermis generally has more areolar and adipose tissue. this is the layer that tattoos are injected into..
Is eczema a homeostatic imbalance of the integumentary system?
Eczema is a common inflammatory skin condition, but it is not a homeostatic imbalance of the integumentary system. It is characterized by itchy, red, and inflamed skin patches and is believed to result from a combination of genetic and environmental factors, rather than a disruption in the body's overall internal balance.
How does acne effect the integumentary system?
i just did a project on the integumentary system for a apps. to healthcare science class. Acne Vulgaris is a inflammation of the oil glands. the cause is unknown. Acne usually occurs in adolescence. Hormonal changes and increased secretion of oil. Symptoms include papules, pustules, and blackheads. Treatment methods includes frequent, thoughout skin washing; avoid creams and heavy makeup;antibiotic or vitiam A ointment.
What is endocytosis and exocytosis?
Endocytosis is a process for moving items that are outside of the cell into the cytoplasm of the cell.
Exocytosis is a process for moving items from the cytoplasm of the cell to the outside.
How does your body protect you from draughts?
Our bodies can regulate internal temperature through mechanisms like shivering to generate heat or sweating to cool down. Skin acts as a barrier to prevent excessive loss of moisture, while the respiratory system can help retain moisture by adjusting the way we breathe. Additionally, the body signals thirst to prompt us to drink water and stay hydrated, which is crucial in preventing dehydration during dry conditions.
What does Strontium do in the human body?
Strontium can be used in the body to help build strong bones and may be prescribed as a supplement for treating osteoporosis. However, excessive levels of strontium can be harmful to health, affecting bone density and leading to potential health issues.
