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bio exam 2 pt 1
bio exam 2
| Question | Answer |
|---|---|
| what are the four types of tissuea | epithelial connective muscle nervous |
| covers and lines organs | epithelial |
| most diverse, cells and extracellular matrix | connective |
| skeletive, smooth, cardiac | muscle |
| neurons and glial cells (neuroglia) | nervous |
| only in urinary bladder | transitional epithelial tissue |
| only in respiratory tract (trachea and bronchi) | pseudostratified ciliated columnar |
| one layer | simple epithelium |
| multiple layers | stratified epithelium |
| what are the three shapes of epithelial tissue | squamous cubodial columnar |
| what are the 8 types of connective tissue | loose (areolar) reticular dense regular dense irregular adipose elastic cartilage bone blood |
| what type of connective tissue is made of fibers? what are the three fibers? | areolar collagen, elastic, reticular |
| what is the largest fiber to smallest | collegen- lots of resiliency elastic- can stretch than go back to origninal size reticular- super small but very tough |
| connective tissue that is like a cobweb | loose areolar |
| connective tissue in the lymph node | reticular |
| connective tissue inside the wall of artery | elastic |
| connective tissue that is fat | adipose tissue |
| connective tissue which a tendon connects muscle to bone or white fibrous | dense regular |
| connective tissue that looks messy and surrounds hair follicles and sebaceous glands: found in dermis of scalp | dense irregular |
| what are the two types of bone | spongy bone compact bone |
| type of bone that you find in the ends of long bones; contains red bone marrow | spongy bone |
| type of bone that is the shaft of long bone | compact bone |
| what do both bone and cartilage connective tissues have? | cells in lacunae ( little lakes) |
| does bone or cartilage heal faster, why? | bone, the cells have the ability to get nutrients and oxygen more quickly due to the canals |
| what are the three types of cartilage connective tissue? | hyaline fibrocartilage elastic |
| what is the most common type of cartilage in the body and what does it cover | hyaline, covers the ends of the long bones forms articular cartilage |
| loss of this cartilage can cause arthritis | hyaline |
| where is fibrocartilage found | in the intervertebral discs |
| where is elastic cartilage found | only in the auricle (outer part) of the ear |
| what is the matrix in blood called | plasma |
| what are the two types of cells in blood | white blood cell and red blood cells |
| where are the fibers in blood | no active fibers because blood has to flow through the circulatory system |
| what does the plasma in blood contain? why? | dissolved fibers, to form clot if necessary |
| what makes fibers? | fibroblasts |
| what makes bone | osteoblasts |
| what makes cartilage | chondroblasts |
| what are the three types of muscular tissue | skeletal smooth cardiac |
| describe skeletal muscle | striated voluntary (attached to skeleton) multinucleated |
| describe smooth muscle | not striated uninucleated involuntary (not attached to skeleton) |
| example of smooth muscle | digestive tract |
| describe cardiac muscle | striated usually uninucleated involuntary |
| example of cardiac muscle | only in heart |
| what does cardiac muscle have? what is it? describe | intercalated discs, type of desmosome, squiggly lines |
| what does nervous tissue have | neurons, dendrites, neuroglia |
| what do neurons do | send the messages |
| what do glial cells do | support the neurons work |
| what do goblet cells do | secretes mucous |
| where are goblet cells found | in any columnar tissue |
| what are the two kind of glands in the body | exocrine glands endocrine glands |
| what gland secrete their product onto a duct or the surface (of the skin) | exocrine glands |
| examples of exocrine glands | sweat glands, oil glands, earwax, mammory glands |
| what gland secrete their product into the blood | endocrine glands |
| what are the three modes of secretion | merocrine gland apocrine gland holocrine gland |
| explain merocrine glands and give example | they make the product and secrete it, without loss of cytoplasm ex. salivary glands |
| explain apocrine glands and give example | cell makes product then a piece of the cell pinches off and is secreted with the product ex. mammary gland |
| explain holocrine glands and give example | cell make the product and then cell is secreted along with product. the next cell divides meiotically to take its place. cell dies ex. sebaceous gland |
| what are the three intercellular junctions? | tight junction desmosome gap junction |
| explain a tight junction | two hands- shape Sertoli cells- nurses testes to make sperm protecting the development of sperm |
| explain desmosome | ex. intercalated disc in cardiac muscle knits the cells together and holds them there together |
| explain gap junction | neurotransmitters sit in the gap junction when the message gets to the end of the nerve cell it goes the through gap junction to get to next nerve cell |
| example of gap juction | ssri |
Created by:
jericalocke