Tissue

Question 1

Squamous epithelial cell

Answer 1

• scaly, flat,thin cells that don’t offer much protection
• they fit together closely ( like crazy paving)
• allow materials pass through by osmosis and diffusion
  Found in- lung ( alveoli), blood capillaries, bowman’s capsules of neuprons ( kidneys )

Question 2

Cubodial epithelial cells

Answer 2

Cube shaped with spherical nuclei
- lines ducts and tubes to allow materials

Found in - kidneys ( tubules), sweat ducts, thyroid glands , breast tissue

Question 3

Columnar epithermal cells

Answer 3

Tall with slightly oval shaped nuclei
Secretes mucous and removed unwanted particles using cilla : found in
- trachea
- bronchi
- small intestine

Found in goblet cells which secrete mucus’s in the respiratory and alimentary tract

Question 4

Coumpound epithelial tissue

Answer 4

Varied structure
- in multiple layers
Protect deeper parts of body
Mouth
Tongue
Oesgogus
Vagina

Question 5

where is the connective tissue lie

Answer 5

Under the epithelial tissue

Question 6

Function Blood tissue

Answer 6

Transports materials different materials and substances around the body such as dissolved gases like oxygen and carbon dioxide and nutrients like glucose, amino acids, salts, enzymes and hormones

Question 7

What is the function of compact bone tissue

Answer 7

Bone
- strengths
- protects
Cartilage
- protects ends of the bones
- liberates joints

Question 8

What is the function of adipose tissue

Answer 8

• stores fat
• insulates
• makes 20%-25% of body weight

Question 9

Arelor tissue

Answer 9

Holds organ in place
- add layers to other epithermal tissues

Question 10

What is the definition of diffusion

Answer 10

• the passage of molecules from high concentration to low concentration

Question 11

What is the definition of osmosis

Answer 11

The passage of water molecules from a high concentration to a low concentration through a permeable membrane

Question 12

What is the definition of epithelial tissue

Answer 12

The lining of internal and external surfaces and body cavities

Question 13

Where does arterial blood flow come from

Answer 13

Arterial blood flow comes from from tyr heart and is bright red ( oxygenated blood)

Question 14

Where does venous blood flow come from

Answer 14

Venous blood flows to the heart and is dark red- deoxygenated blood

Question 15

What does collogen do for ur skin/tissue

Answer 15

• structural protein in the form of fibers for strength

Question 16

What parts of the Central nervous system (CNS) include

Answer 16

Brain and spinal cord

Question 17

Automatic nervous system(ANS)

Answer 17

Part of nervous system , controlling the internal organs

Question 18

ANTAGONISTS muscles

Answer 18

• one muscle or one sheet of muscle’s
• contracts while opposing muscle or sheet relaxes
• when the biceps contract, the tricepts relax

Question 19

Homeostasis in tissue/ muscles

Answer 19

Mantaining a constant internal environment despite changing circumstances
- water content surrounding cells
-PH and chemical concentration
Temperature

Question 20

What is myelin

Answer 20

Insulated sheeth around many nerve fibers
- formed proteins and phospholipids - increasing the speed of nerve conduction

Question 21

What is inside plasma
What is the colour of plasma

Answer 21

Oxygen
CO2
Nutrient
Glucose
Salt
Hormones
Animo acids
Protein( for blood clotting)
Usally yellow sometimes orange- bc of hempglobin

Question 22

What are red blood cells called / what do they carry
What are the shape of red blood cells/ Why they are that shape

Answer 22

Red blood cells are called erythrocytes
And they carry oxygen haemoglobin
- the shape of a RBC is a biconcave disc

• RBC HAVE a biconcave disc to increase there surface area for the diffusion of oxygen across their surfaces

Question 23

What are large white cells called

Answer 23

-Granuloctyes
- defence mechasim again infection
Can change shape to engulf foreign bacteria/cells- this process is called phagocytes, polymorphs and neutrophils.
-granules in cytoplasm
- lobed nuclei

If ur white celll count is raised it could mean you have an infection or inflammation in ur body

Question 24

What are small white blood cells called

What does a neutralised microbe called

Answer 24

Lymphocytes
- body defence mechanisms
- help body produce antibodies

Lymphocytes can identify antigen as diseases causing microbes or pathogens have antigens on there surface which act as an identity maker

• antibodies, specific to the antigen, attach and neutralise the antigen, prevring it from multiplying
• a neutralised microbe is called phagocyted

Question 25

What is a LARGER form of white blood cell called ( information about them ) What is the name for a thing that help with blood clotting

Answer 25

Monocytes- can leave blood vessel in sight of an infection - effect of phagoctysis - thrombocytes - platelets - blood clotting

Question 26

Muscle - straited

Answer 26

Known has voulntry or skeletal muscle Attach to bones of the Skelton Contracts when it recieves nerve impulses from central nerve system (CNS) creating movement Muscle fibers contain thousands of fibres Each fibre has alternate light or dark bands which are made out of muscle protein Straited- parrell strips

Question 27

Muscle - non stariated

Answer 27

- also non as non voulntry or smooth muscle Appearance - sheets - made up in spindle shaped fibres with single nuclei - smooth muscle can not be contracted by our own thoughts ( ANS) - Impluse are supplied by automatic nervous system - found in - stomach -intensities - eyes - bladder and uterus - it is not attached to the bone This is responsible for - peristalsis in the intestines

Question 28

Muscles cardiac One place u can find this muscle

Answer 28

Also known as myocardium • Found only in the four chambers (atria and ventricles) of the heart • Forms a branching network • so contractions can spread rapidly • Rhythmically contracts (beats) without nervous stimuli • is controlled, in a healthy heart, by the autonomic nervous system • The autonomic nervous system controls the rate of contraction via the nerves in order to adapt the flow of blood to specific circumstances • e.g. rest and exercise

Question 29

THe neverous tissue

Answer 29

brain spinal cord nerves -- Receives stimuli from both external and internal sources​ - Aims to maintain homeostasis, coordination and communication between different parts of the body. - interprets stimuli from sense organs​ Vision​ Hearing​ Smell​ Touch ​ Taste​

Question 30

What two things are nervous tissues composed of and what are there function

Answer 30

neurons- trasmit nervous impuseles present only in the brain and spinary cord Neurologia- cells offer support and protection forms myelin assists in homeostasis

Question 31

What is bone made from ( two components )

Answer 31

collegen- offer the ability to bend under strain to prevent bone from being to brittle and likely to fracture calcuim- give bones hardness

Question 32

What is the function of bone/skeletal system?

Answer 32

protects vitial organs protect vital organs faciliate in movement

Question 33

1. What are ephithelial tissue - - what is simple ephila - what is compound epthelila - WHAT are 4 types of ephithelilal tissue - 3 functions of epithelial tissue

Answer 33

1.The act as a barrier on the inside of organs and protect them from wear tear and bacteria - simple epthelila- one layer ( columnar, squamous and cillated) Coumpound - several layers ( simple and keratinised ) 4 types - simple cuboidal - simple squamous - simple columnar - cilated 3 functions - protection - secrection - absorption

Question 34

EXPLAIN the function of epithial tissue WHAT DOES EPITHELIL TISSUE PROTECT

Answer 34

- in cilated epithelial epithelial tissue, the goblet cells ( part of the tissue), releases mucus into the area which catches any foreign substances such as dust and the cilia push the mucus out of the body. 2. Surface of organs - skin - lines body cavities

Question 35

Explain the secreaction of epithelial tissue Explain the absorption of ephithelilal tissue Name 2 materials epithelial tissues help absorb What are body cavities? Explain the role of hormones Hormones

Answer 35

During the secrection of epithelial tissues, the lining of the glands which are made from ephlilal tissue releases hormones in blood stream - ephithelial tissue help absorb materials such as nutrients which are absorbed by the lining of large instenstines Oxygen - nutrients Body cavities give space for organs such as the heart, lungs, and liver to develop, expand and move Hormones influence different body functions such as growth, reproduction, and sleep

Question 36

What is compound epithelial tissue What is kertainsed epithelial tissue 5 types of connective tissue What are the functions of connective tissue

Answer 36

It is a compound epithelial tissue which is found on outer surfaces of the body such as the skin● This tissue has keratin, a protein with water–like proofing qualities that prevents bacteria from entering thebody● It is important to take care of your skin to prevent cracks and bacteria from entering your body • Blood bone cartilage : adipose and arelor The functions of- to protect vital organs ( heart , heart brain ) - transports ( substances in blood ) - insulates ( adipose tissue prevent heat loss )

Question 37

What is the matrix and where is it found What is blood clotting and how can it be harmful

Answer 37

Matrix is background material found in tissue ( supports and protects ) Found in - arelor tissue which are jelly like - blood which is liquid - cartaliage which is firm and secure Bone which is hard - blood clotting prevent bacteria prevent cut from getting deeper or infected - blood clots are harmful because if there is blood clot in the ateries in the heart it can stop the pathway of healthy blood being transported around the body - cause stoke or heart attack _

Question 38

Characteristics of muscle tissue which contribute to muscle functioning

Answer 38

Contractability- the ability to shorten and thicken Irritability - the ability to respond to stimuli created by nerve impulses Extensibility - the ability to stretch Elasticity- ability to return to its original shape following contraction