Integumentary System
Each of the following is a function of the epidermis except:
Synthesis of vitamin C
How many cases of skin cancer are diagnosed every year?
1 million
what are some key treatments to Malignant melanoma
- Early detection -ABCD Rule
what are some symptoms of acne?
- Hormones may stimulate extra sebum .- Blockage .- Bacterial inflammation of oil glands
What is true about aging?
-Decrease in melanocytes -A degrease in glandular activity -The thinning of the epidermis of skin
What are some function of the epidermis?
-Excretion -Protection of underlying tissue -Thermoregulation
what are the functions of the Subcutaneous layer?
1. Insulates the body 2. Stored source of energy 3. Attaches dermis/epidermis to muscle 4. Shock absorbing pad 5. Protects underlying tissue 6. Can be used as food source 7. Contains blood vessels to bring blood to dermis
what are the 3 common forms of skin cancer?
1. basal cell carcinoma 2. squamous cell carcinoma 3. malignant melanomas
define scab
A fibrin clot that forms at the stratum basale layer of the epidermis
What is the tissue type of hypodermis?
Adipose
What type of secretions are in involved in Mammary glands and the release of milk?
Apocrine (and merocrine) secretion
What is the tissue type of the papillary layer of dermis?
Areolar connective tissue
What tissue type is fluid connective tissue?
Blood
What is the tissue type of Supportive connective tissues?
Bone and cartilage
What is the tissue type of the reticular layer?
Dense irregular connective tissue
What is the tissue type of the tendons and ligaments?
Dense regular connective tissue
dermatitis
Inflammation of the papillary region
Define erythema
Red color of skin due dilation of blood capillaries
What tissue type of storm liver?
Reticular connectie tissue
What is the layer of the epidermis containing cells undergoing mitosis?
Stratum basale
You are walking barefoot on the beach and a splinter lodges itself in the third layer of the epidermis on the plantar region of your foot. What is the deepest layer of the epidermis affected?
Stratum granulosum
Define eponychium
The cuticle, or layer of stratum corner
Define hyponychium
Thick stratum corneum beneath nail plate at the junction between the free edge and the skin of the fingertip.
True or False? Apocrine sweat glands, concentrated in the axillary and groin regions, release a viscous sweat by merocrine secretion. These secretions may have function in communication and the activity of these glands influenced by hormones.
True
True or false? Apocrine sweat glands, conentrated in the groin regions, release a viscous sweat by merocrine secretion. These secretions may have function in communication and the activity of these glands influenced by hormones.
True
True or false? Mammary glands are exocrine glands the release milk by holocrine secretion. The activity of these glands is influenced by the endocrine system.
True
Define hemangioma
Tumor in capillaries of the papillary dermis
What is the ABCD rule?
asymmetry, border irregularity, color, diameter
acne
bacterial inflammation of oil glands.
what does furuncle lead to?
boil
What is the origin of Malignant melanoma?
comes from melanocytes
What does -itis indicate?
inflammation
Define folliculitis
inflammation of the hair follicles
how dangerous is malignant melanoma?
life threatening
How fast does Squamous cell carcinoma metastasize?
may metastasize
How fast do Malignant melanomas metastasize?
metastasize rapidly
How fast do basal cell carcinoma metastasize?
rarely metastasize
The layer of the cutaneous membrane that contains both interwoven bundles of collagen fibers and the protein elastin, and is responsible for the strength of the skin, is the:
reticular layer
What are the most abundant cells in the epidermis?
ribosome rich cells
What is metastasis?
spread of cancer, and the degree of how much they could spread