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The cardiovascular system consists of the heart

Chapter one to five
Course

Biology Concepts (BIO100)

3 Documents
Students shared 3 documents in this course
University

Phoenix College

Academic year: 2020/2021
Uploaded by:
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Devin Chris
Phoenix College
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The cardiovascular system consists of the heart, the blood, and the vessels the blood moves through. Mucous membranes line the tubes of the digestive, respiratory, urinary, and reproductive systems. The abdominal cavity contains the small and large intestines. The pleurae cover the lungs and thus would be part of the respiratory system. Meningitis is an infection of the meninges, which are the membranes found within the dorsal cavity, covering the brain and spinal cord. Homeostasis is the body's ability to maintain a relative constancy of its internal environment. Sweating cools the body and is part of body temperature homeostasis. All of the body systems are involved in homeostasis. A positive feedback system results in an increasing change in the same direction. The respiration rate is involved in regulating the blood's acid-base balance, not temperature regulation. In a negative feedback mechanism, when the value in question is over or under a set point, the system brings about an effect to return the value to that set point. Therefore, the value will vary around a set point. The role of the immune system is to protect the body from infections. Skin is the most conspicuous system in the body and accounts for nearly 15% of the weight of an average human. Blackheads result from failure of the sebaceous glands to discharge their substance known as sebum. Melanocytes are found in the epidermis, so tanning alters the number of melanocytes produced in that layer. The dermis does not contain melanocytes. The subcutaneous layer/hypodermis does not contain melanocytes either. Keratin is a structural protein that is responsible for waterproofing the skin. The protein keratin is important in waterproofing the skin. The epidermis is not associated with nerves or blood supply. Contraction of the arrector pili muscles attached to hair follicles causes the hairs to "stand on end," creating the appearance of goosebumps. Hair follicles are not responsible for goosebumps but instead are pulled upright. Sebaceous glands produce an oily substance called sebum. Sudoriferous glands produce sweat. The

cuticle is a fold of skin that hides the nail root. The epidermis is made up of stratified squamous epithelium. The dermis is made up of dense fibrous connective tissue. Adipose and loose connective tissue are components of the subcutaneous layer. Elastic fibers are part of the dermis. The integumentary system does not produce leukocytes or white blood cells. Because food is absorbed from the small intestine, the epithelial lining is modified for absorption. Epithelial tissue covers surfaces and lines body cavities. Endocrine glands are considered ductless glands, while exocrine glands contain ducts. A Pap smear is an important procedure utilized to detect cervical cancer in women. In epithelial tissues, the basement membrane serves to anchor the epithelial tissue to underlying connective tissue. The dendrite receives the signal from a sensory neuron. The cell body processes the impulse and passes it to the axon. The axon sends the impulse away from the cell body. The nucleus contains the cell's genetic material. The myelin sheath assists in conducting the impulse away from the cell body. Dendrites receive signals from sensory receptors or other neurons and axons conduct nerve impulses. Nervous tissue receives sensory input, integrates data, and conducts impulses. Neurons are specialized cells that conduct a signal. Smooth muscle lines the bladder and is responsible for the ability to urinate. In turning a page of a book, you would mainly be using skeletal muscle. The placement of actin and myosin filaments in skeletal muscle cells gives them a striated appearance. Lymphatic vessels serve to absorb fat molecules from the small intestine. Leukocytes are involved in protecting the body, their numbers go up in the case of an infection. Lymph contains white blood cells. Blood is composed of formed elements (red blood cells, white blood cells, and platelets) and plasma. Red blood cells are responsible for transporting oxygen via the hemoglobin protein.

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The cardiovascular system consists of the heart

Course: Biology Concepts (BIO100)

3 Documents
Students shared 3 documents in this course

University: Phoenix College

Was this document helpful?
The cardiovascular system consists of the heart, the blood, and the
vessels the
blood moves through.
Mucous membranes line the tubes of the digestive, respiratory, urinary,
and
reproductive systems.
The abdominal cavity contains the small and large intestines.
The pleurae cover the lungs and thus would be part of the respiratory
system.
Meningitis is an infection of the meninges, which are the membranes
found within
the dorsal cavity, covering the brain and spinal cord.
Homeostasis is the body's ability to maintain a relative constancy of its
internal
environment.
Sweating cools the body and is part of body temperature homeostasis.
All of the body systems are involved in homeostasis.
A positive feedback system results in an increasing change in the same
direction.
The respiration rate is involved in regulating the blood's acid-base
balance, not
temperature regulation.
In a negative feedback mechanism, when the value in question is over or
under a set
point, the system brings about an effect to return the value to that set
point.
Therefore, the value will vary around a set point.
The role of the immune system is to protect the body from infections.
Skin is the most conspicuous system in the body and accounts for nearly
15% of the
weight of an average human.
Blackheads result from failure of the sebaceous glands to discharge their
substance
known as sebum.
Melanocytes are found in the epidermis, so tanning alters the number of
melanocytes produced in that layer. The dermis does not contain
melanocytes. The
subcutaneous layer/hypodermis does not contain melanocytes either.
Keratin is a
structural protein that is responsible for waterproofing the skin.
The protein keratin is important in waterproofing the skin.
The epidermis is not associated with nerves or blood supply.
Contraction of the arrector pili muscles attached to hair follicles causes
the hairs to
"stand on end," creating the appearance of goosebumps. Hair follicles are
not
responsible for goosebumps but instead are pulled upright. Sebaceous
glands
produce an oily substance called sebum. Sudoriferous glands produce
sweat. The

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