©Jason MacConnell 2025 ALL RIGHTS RESERVED.
Cohn 319 Exam 1 Questions With Correct
Answers A+
Histology definition - Answer✔study of tissues
4 major tissue types - Answer✔Epithelial, connective, muscular, and Nervous
All Tissue Type Characteristics - Answer✔-Exists as aggregations of identical cells(sheets,
lumps, etc)
-Has range of specific shapes, sizes, thickness, and intercellular connections
-Has unique distribution pattern throughout the body
Histology requirements - Answer✔-Microtome to make ultra-thin sections
-High quality light microscope that magnifies specimens up to 1000x with high resolution
-Broad array of solutions and stains so that ultra thin sections mounted on a microscope slide can
be visualized optimally
connective tissue - Answer✔-Has connective function
-Most abundant tissue type
How muscle tissue produces force - Answer✔Rapidly shortens
Nervous tissue characteristics - Answer✔-Major tissue type of the nervous system
-Cells convey electrochemical signals for sensing, decision making, and control or support those
that do
Histology importance in medicine - Answer✔-Medical histologist(pathologist) is physician who
examines the appearence of sample tissue(biopsy) from patient
pathologist - Answer✔Expert on the appearance of normal tissue and appearance of abnormal
tissue
Extracellular matrix may contain what components? - Answer✔Collagen, reticular fibers, elastin
fibers, ground substance, interstitial fluid
Skeletal muscle structure - Answer✔Large cylindrical cells with striations and several nuclei
each
, ©Jason MacConnell 2025 ALL RIGHTS RESERVED.
smooth muscle structure - Answer✔Fusiform(spindle shaped), mononucleated, non striated,
embedded accross many organ systems
Cardiac muscle structure - Answer✔Mononucleated, located in heart, contains gap junctions
Skeletal muscle function - Answer✔Large powerful cells, controlled consciously, activated by
nervous system, moves skeleton, amitotic
Smooth muscle tissue function - Answer✔Not large, can have high endurance, never controlled
consciously, regulates size of the lumen of hollow organs(except the heart), controlled by the
nervous and endocrine systems
Cardiac muscle tissue function - Answer✔Not large, spectacular endurance, never controlled
consciously(emotional state can influence), contraction stimulated by pacemaker which can be
influenced by the nervous system
Multipolar neurons function - Answer✔decision making,interneuronal, and control functions of
the nervous system
Bipolar Neurons - Answer✔Centrality of function of the retina and olfaction
pseudounipolar neurons - Answer✔Somatosensation
Gross Anatomy - Answer✔Large body structures visible to naked eye
What is a tissue? - Answer✔lump/sheet of identical cells linked together
4 types of tissue - Answer✔nervous, muscle, connective, epithelial
Histology definition - Answer✔microscopic study of tissues typically below 1,000x
magnification
Cytology - Answer✔Histology using Electron microscopy 1,000x to 1,000,000x allowing for
intracellular ultrastructure
Integrated anatomy and physiology - Answer✔overview of link between structure and function
Elements - Answer✔Pure substances made up of pure atoms of element
Atom - Answer✔Smallest unit of element still retaining properties
Four main elements - Answer✔carbon, hydrogen, oxygen, nitrogen
Macromolecules - Answer✔Lipids, carbs, proteins, and nucleic acids
Organ seen at gross anatomical level composed of two tissues may: - Answer✔Have overlapping
function
Bladder(urinary/excretory system) - Answer✔-Composed of smooth muscle
-Cells are capable of shortening producing force forcing urine out(urge to pee)
