Chapter 10-13 Test Flashcards
Thin vs. Thick Skin
Thin- Has hair and is smooth
Thick- No hair and Ridgid
Cell Types in Epidermis
Keratinocytes
Melanocytes
Epidermal Dendritic
Tactile Epithelial (Merkel cells)
Turnover/Regeneration time for Epithelial cells
35 days
True Skin
Deep sensitive layer of skin beneath the epidermis
Hypodermis
Located deep in the dermis and forms a connection between skin and other structures
Is the Hypodermis part of the skin?
No
Stratum Corneum
Horny layer of skin and made with dead cells (surface skin)
Papillary Layer
Composed of loose fibrous connective tissue and a fine network or thin collagenous and elastic fibres (Creates Ridges)
Skin Cancers
Basal and Squamous cell Carcinoma
Malagnant Melanoma
Kaposi Sarcoma (KS)
Purpose of Surface Film
Lubrication Hydration of skin Blockage of toxic agents Buffering of irritants Antibacterial and Antifungual activity
Hair follicles
Tiny pockets in skin before birth
Languo Hair
Fine and soft
Vellus Hair
Stronger, fine, usually less pigmented
Terminal Hair
Pubic hair, armpit
Radiation
Transfer of heat from one object to another without actual contact
Conduction
Transfer of heat to any substance actually in contact with the body
Convection
Transfer of heat away from a surface by movement of air
Why would skin not be pigmented
Tissue near the skin having low oxygen saturation
How many Bones in Axial Skeleton
80
How many Bones in Appendicular Skeleton
126
Cyanosis
Bluish colour caused by deoxyhemoglobin when it loses oxygen and gain Carbon dioxide
Central Cyanosis
Around the Core, lips, tongue
Peripheral Cyanosis
Extremities or fingers
Endosteum
Thin vascular membrane of connective tissue that lines the surface of the bony tissue that forms the medullary cavity of long bones.
Osteoblast
A cell that secretes the matrix for bone formation.
Osteoclast
A large bone cell that absorbs bone tissue during growth and healing.
Red Marrow
Functions to produce red blood cells
Yellow Marrow
Saturated with fat and are no longer active in blood cell production
Parts of a Long Bone
Diaphysis Epiphyses Articular Cartilage Periosteum Medullary Cavity Endosteum
Osteon
Permits delivery of nutrients and removal of waste products from metabolic bone cells
haversian system
The fundamental functional unit of much compact bone
Where is Cartilage located?
Ends of long bones joints, and is a structural component of the rib cage, the ear, the nose, the bronchial tubes, and the intervertebral discs
Axial Skeleton
Consists of the bones of the head and trunk of a vertebrate
Appendicular Skeleton
consisting of the bones or cartilage that support the appendages.
Parts of the Sternum
Manubrium, the body, and the xiphoid process
Fontanel
Space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed. The main one is between the frontal and parietal bones.
Fossa
depression or hollow, usually in a bone
Bone Markings for Muscle attachment
Crest Epicondyle Spine Trochanter Tuberosity
Full Thickness Burn
destroy both layers of skin (epidermis and dermis) and have a dense white, waxy or even charred appearance. The sensory nerves in the dermis are destroyed
Partial Thickness Burn
Affect a deeper layer of skin, but they don’t damage muscle or bone.
