Cells, Tissues & Organs Flashcards

1
Q

What are the four main types of tissue?

A
  • Epithelial
  • Connective
  • Muscle
  • Nervous
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2
Q

What is Epithelial Tissue?

A

Forms the lining layer on the outer and inner surfaces of organs

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3
Q

What is connective tissue?

A

Tissues and organs are supported and held in position in the body by connective tissue which binds, supports and protects other body tissues

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4
Q

What cells are found in Connective tissue?

A

Fibroblasts - secrete extracellular fibres
Mast cells - secrete histamine in inflammatory reactions
Macrophages - engulf pathogens, ageing, damaged and cancer cells

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5
Q

Two or more different tissues form a ..

A

Organ

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6
Q

What’s the order of the cells and the body?

A
Molecules
Organelles
Cells
Tissues
Organs
Organ System
Organism
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7
Q

Which organ processes digested nutrients and is the largest organ inside the body?

A

Liver

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8
Q

What’s the largest organ outside of the body?

A

Skin

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9
Q

What tissue is abundant in the wall of the heart?

A

Muscle

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10
Q

What system transports oxygen and nutrients to the cells of the body?

A

The Circulatory system

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11
Q

What organ system does the trachea belong to?

A

Respiratory

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12
Q

The stomach belongs to what system?

A

Digestive

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13
Q

What organs are involved in the intake of O2?

A

Respiratory
Muscular
Nervous

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14
Q

What type of tissue forms a packing material that surrounds and protects organs by cushioning them?

A

Connective tissue

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15
Q

Examples of a cell?

A

Red blood cell

Cardiac muscle cell

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16
Q

Three main components of the cardiovascular system?

A

Heart
Blood vessels
Blood

17
Q

What are the three layers of the heart wall?

A

Pericardium - outer protective layer
Myocardium - thick, responsible for forcing out bloody of heart chambers
Endocardium - line the interior surface of the heart and all blood vessels

18
Q

Cardiac muscles are located in the walls of the heart & they are ..

A

Striated ( striped )

19
Q

The pericardium has what function?

A

Reduces friction between the 2 pericardial membranes

20
Q

Where does the blood flow through the heart?

A
Deoxygenated bloody through superior vena cava
Right atrium 
Right ventricle
Pulmonary artery ( to lungs )
Pulmonary vein ( from lungs )
Left atrium 
Left ventricle 
Aorta
Back round body
21
Q

What is the valve called in between the right atrium and right ventricle?

A

Tricuspid valve

22
Q

What’s the valve called in between the right right ventricle going to the pulmonary artery?

A

Pulmonary valve

23
Q

Which chamber of the heart has the thickest wall?

A

Left ventricle because lots of muscle, creates a lot of pressure, creates such a great force to pump the blood around the body

24
Q

Which blood vessel lacks smooth muscle tissue in its wall?

25
Which bloody vessel carries deoxygenated blood to the lungs?
Pulmonary arteries
26
Which artery do you usually record the pulse rate in?
Radial artery
27
What is the largest diameter artery in the human body?
Aorta
28
What is the largest diameter vein in the human body?
Inferior vena cava
29
What organelle functions in cellular respiration to produce energy?
Mitochondrion (energy plant)
30
What organelle functions to package and deliver proteins?
Golgi body (Post office and parcel sorting centre)
31
The rough endoplasmic reticulum functions to?
Manufacture and transport proteins (Road and Rail)
32
What organelle is responsible for destroying worn out cell parts?
Lysosomes ( recycling plant )
33
Genetic material is contained in the?
Nucleus (Town hall and information centre)
34
Which organelle is responsible for the formation of proteins within the cell?
Ribosome (Factories)
35
Name some characteristics of the cell membrane?
``` Protective Flexible Thin Encloses the contents of the cell Barrier ```
36
Describe the fluid mosaic model of the plasma membrane?
A lipid bilayer with protein molecules dispersed within it
37
What is diffusion?
Movement of molecules of high concentration to a lower concentration gradient
38
What is osmosis?
Flow of water across a membrane
39
Particles moving from a region of lower concentration to a region of higher concentration is called?
Active transport