Ch. 4 Tissue Level Of Organization Flashcards
A ___ is a group of cells that have the same specialized function and embryonic origin
Tissue
The study of tissues
Histology
A physician who studies cells and tissues
Pathologist
___ tissue covers body surfaces, lines cavities, and forms glands
Epithelial
___ tissue binds organs together, stores energy, and participates in body defenses
Connective
____ tissue produces the physical force for body movements
Muscle
____ tissue detects and responds to changes in internal and external body conditions
Nervous
Cell ___ hold cells together to form tissues
Junctions
Cell junctions are points of contact between adjacent ___ ___
Plasma membranes
___ junctions form fluid-tight seals between cells
Tight
___ anchor cells to one another or to the basement membrane
Desmosomes
___ junctions permit electrical and chemical signals to pass between cells
Gap
What attaches the epithelial tissue to the underlying connective tissue?
Basement membrane
___ glands secrete hormones that enter interstitial fluid and then the blood
Endocrine
The secretions of ___ glands enter ducts that empty secretions onto the skin surface or into the lumen of an organ
Exocrine
What tissue binds organs together, stores energy reserves as fat, and helps provide immunity?
Connective
Is connective tissue vascular or avascular?
Epithelial?
Vascular
Avascular
The two structural components of connective tissues are ___ and ___ ___
Cells and extracellular matrix
The three types of fibers that can be imbedded in the extracellular matrix are:
Collagen fibers
Elastic fibers
Reticular fibers
What are the most numerous connective tissue cells?
Fibroblasts
What are the five types of mature connective tissue?
Loose connective Dense connective Cartilage Osseous (bone) Liquid connective (blood and lymph)
____ are flat sheets of flexible tissue that cover or line a body structure
Membranes
Mucous membranes, serous membranes, and the cutaneous membrane are ___ membranes
Epithelial
Body cavities that open to the exterior are lined with a ___ membrane
Mucous
Body cavities not opening to the exterior are lined with a ___ membrane that also covers cavity organs
Serous
What are the three types of muscle tissue?
Smooth
Cardiac
Skeletal
___ muscle tissue is attached to bones and is striated, multinucleated, and voluntary.
Skeletal
___ muscle tissue forms most of the heart wall, is involuntary, is striated, has one nucleus, and intercalated discs.
Cardiac
___ muscle tissue is nonstriated, involuntary, contains muscle fibers, and is located in the walls of hollow organs
Smooth
