Bio 201 Rio Salado Exam 1 | Questions and Verified
Solutions Latest Update
Serous Membranes - ANSWER -moist membranes found in closed ventral body
cavities. consists of simple squamous epithelium resting on a thin layer of loose
connective areolar tissue
Analyze the changes that occur in tissue from embryonic development throughout
a person's lifetime. - ANSWER -First event of embryotic development is primary
germ layers (ectotherm, mesotherm, and endotherm).
-They then specialize to form the 4 major tissues by second month of development.
-division of nerve cells stop during fetal period.
-only epithelia and blood-forming tissues are highly miotic.
-with age, epithelia thins breach prone, tissue repair and circulatory system is less
efficient
-More DNA mutation = cancer.
melanin - ANSWER -protects the keratinocytes nuclei from the damaging affects
of UV radiation
sweat glands (sudoriferous) - ANSWER -thermoregulation
eccrine sweat gland - ANSWER -produces true sweat; abundant on the palms of
hand, soles of the feet, and forehead
Apocrine sweat gland - ANSWER -produce true sweat plus fatty substances and
proteins; found in the axillary (armpit) and anogenital areas of the body
oil glands (sebaceous) - ANSWER -empty into hair follicles, they are simple
alveolar glands; their oily, holocrine secretion is called sebum. Lubricates the skin
and hair, prevents water loss from skin
hair follicle - ANSWER -
, arrector pili - ANSWER -smooth muscle cells associated with each hair follicle
bundle of smooth muscle cells, pulls the hair follicle into an upright position,
forms goosebumps due to cold temperature and fear
hair - ANSWER -Hair on skin senses insects before they sting or bite; Hair on
scalp protects from physical trauma, heat loss, sunburn; eyelashes shield eyes; nose
hairs filter particles in the air
nail - ANSWER -scalelike modification of the epidermis that forms a clear
protective covering on the dorsal surface of a finger or toe
Explain the principle of complementarity. - ANSWER -Anatomy and physiology
are inseparable because function always reflects structure examples.) bones
support and protect body organs because they contain hard mineral deposits and,
blood flows in one direction through the heart because the heart has valves that
prevent back flow.
Levels of structural organization (in order of increasing complexity) - ANSWER
1) Chemical Level- At this level atoms, tiny building blocks of matter combine to
form molecules such as water and proteins.
2) Cellular Level- All cells have some common functions, but individual cells
vary widely in size and shape, reflecting their unique functions in the body.
3) Tissue Level- Tissues are groups of similar cells that have a common
function 4) Organ Level- Organs are made up of different tissues.
5) Organ (System) level- Organ systems consist of different organs that work
together closely.
6) Organismal Level- The human organism is made up of many organ systems.
11 Organ systems of the body (major functions) - ANSWER -1) Integumentary
System- Forms the external body covering.
2) Skeletal System- Protects and supports body organs.
3) Muscular System- Allows manipulation of the environment, locomotion, and
facial expressions.
4) Lymphatic System- Picks up fluid leaked from blood vessels and returns it to
the blood
Solutions Latest Update
Serous Membranes - ANSWER -moist membranes found in closed ventral body
cavities. consists of simple squamous epithelium resting on a thin layer of loose
connective areolar tissue
Analyze the changes that occur in tissue from embryonic development throughout
a person's lifetime. - ANSWER -First event of embryotic development is primary
germ layers (ectotherm, mesotherm, and endotherm).
-They then specialize to form the 4 major tissues by second month of development.
-division of nerve cells stop during fetal period.
-only epithelia and blood-forming tissues are highly miotic.
-with age, epithelia thins breach prone, tissue repair and circulatory system is less
efficient
-More DNA mutation = cancer.
melanin - ANSWER -protects the keratinocytes nuclei from the damaging affects
of UV radiation
sweat glands (sudoriferous) - ANSWER -thermoregulation
eccrine sweat gland - ANSWER -produces true sweat; abundant on the palms of
hand, soles of the feet, and forehead
Apocrine sweat gland - ANSWER -produce true sweat plus fatty substances and
proteins; found in the axillary (armpit) and anogenital areas of the body
oil glands (sebaceous) - ANSWER -empty into hair follicles, they are simple
alveolar glands; their oily, holocrine secretion is called sebum. Lubricates the skin
and hair, prevents water loss from skin
hair follicle - ANSWER -
, arrector pili - ANSWER -smooth muscle cells associated with each hair follicle
bundle of smooth muscle cells, pulls the hair follicle into an upright position,
forms goosebumps due to cold temperature and fear
hair - ANSWER -Hair on skin senses insects before they sting or bite; Hair on
scalp protects from physical trauma, heat loss, sunburn; eyelashes shield eyes; nose
hairs filter particles in the air
nail - ANSWER -scalelike modification of the epidermis that forms a clear
protective covering on the dorsal surface of a finger or toe
Explain the principle of complementarity. - ANSWER -Anatomy and physiology
are inseparable because function always reflects structure examples.) bones
support and protect body organs because they contain hard mineral deposits and,
blood flows in one direction through the heart because the heart has valves that
prevent back flow.
Levels of structural organization (in order of increasing complexity) - ANSWER
1) Chemical Level- At this level atoms, tiny building blocks of matter combine to
form molecules such as water and proteins.
2) Cellular Level- All cells have some common functions, but individual cells
vary widely in size and shape, reflecting their unique functions in the body.
3) Tissue Level- Tissues are groups of similar cells that have a common
function 4) Organ Level- Organs are made up of different tissues.
5) Organ (System) level- Organ systems consist of different organs that work
together closely.
6) Organismal Level- The human organism is made up of many organ systems.
11 Organ systems of the body (major functions) - ANSWER -1) Integumentary
System- Forms the external body covering.
2) Skeletal System- Protects and supports body organs.
3) Muscular System- Allows manipulation of the environment, locomotion, and
facial expressions.
4) Lymphatic System- Picks up fluid leaked from blood vessels and returns it to
the blood
