Lecture 1: Cells & Tissues | Organisation of Human Body Flashcards
Organisation of Human Body
How many systems in the human body?
Eleven
How many types of tissue?
Four
Name the six levels of organisation (smallest>largest)
- Chemical
- Cellular
- Tissue
- Organ
- System
- Organismal
Define Chemical level
Building blocks of body
Define Cellular level
Basic structural and functional units of the body
Define Tissue level
Groups of cells that work together to perform a function
Define Organ level
Structures with specific functions made of two or more types of tissues
Define System level
Related organs with a common function
Define Organismal level
All parts of body function that make up an organism
Name the 11 body systems
- Integumentary
- Muscular (Skeletal)
- Skeletal
- Nervous
- Endocrine
- Lymphatic + Immune
- Cardiovascular
- Respiratory
- Digestive
- Urinary
- Reproductive
what system functions to “protect” the body
integumentary
Name the Integumentary Organ Structures
Epidermis:
- Cutaneous membrane (skin)
Dermis
- Hair follicles
- Sebaceous glands
- Sweat glands
- Nails
- Sensory receptors
Hypodermis
What is the function of the Epidermis Cutaneous membrane?
Protect surface + deeper tissue
Vit D production:
what component of the integumentary system…
- provide nutrients to epidermis
- provide strength
- Form glands
dermis
What is the function of the hair follicles?
Sensation
Protection
True or false?
The Sebaceous Gland Lubricates hair shaft and epidermis and Removes waste
true
Function of the Sweat Gland?
Thermoregulation (sweat)
Breast Tissue = modified sweat gland
what component of the integumentary system…
1. grows in the dermis expressed in the epidermis as dead keratin layer
2. Stiffen and protect digits
nails
what sensations do sensory receptors detect?
Touch/pressure/temp/pain
Integumentary component that has fat stores and attaches skin to deeper layers
hypodermis
Name the x5 muscular system organ structures?
Skeletal muscles
- Axial muscles
- Appendicular muscles
Tendons and Aponeuroses
what body system has a primary function of movement?
muscular system
true or false?
the skeletal muscles only provide movement
FALSE
skeletal muscles provide
- Movement
- Heat production (shiver)
- Support skeleton
- Protect soft tissue
which of the axial or appendicular muscles…
“provide support and position of axial skeleton”
axial muscles
which of the axial or appendicular muscles…
- Support
- Movement
- Brace limbs
appendicular muscles
What is the function of Tendons and Aponeuroses?
Translate contractile forces into tasks
- Tendons attach muscle to bone
- Aponeuroses attach muscle to muscle
Name the x5 skeletal system organ structures
Bones, cartilage and joints
Axial Skeleton
Appendicular skeleton
Bone
Bone marrow
- red + yellow
the function of the skeletal system is to _____ and _____ and produce blood cells in _____.
the function of the skeletal system is to (support) and (protect) and produce blood cells in (bone marrow).
What is the function of Bones, cartilage, joints and types?
Protects joints, shock absorber, reduced friction
what are - hyaline (ribs) and - fibro- (discs) types of?
cartilage
true or false?
“cartilage is a fibrous, resilient, tight material… elastic = sit between joints”
true
What is the components of the Axial Skeleton?
Skull
Vertebrae
Sacrum
Coccyx
Sternum
Supporting cartilages, Ligaments
What is the function of the Axial Skeleton?
o Protect spine, brain, sense organs and soft thorax tissue
o Support body weight over lower limbs
what component skeleton are “Limbs, Supporting bones and ligaments” part of?
appendicular skeleton
main function of the Appendicular Skeleton?
o Support the muscle structure
o Movement – of axial skeleton
what do bones store
a) fat
b) minerals
c) Ca
b) bones store minerals
is RED or YELLOW bone marrow haematopoietic?
RED bone marrow
red blood cells are produced in RED bone marrow
what type of bones are they made in?
flat bones = pelvis; skull; sternum; ribs
What is the function of the YELLOW bone marrow and where is it found?
Store fat cells
- cavity in long bones, gain with age, yellow > red after major bleeding
true or false
“red blood cells are lost with age and fat cells are gained with age”
true
change that occurs to yellow bone marrow when there is severe blood loss?
yellow marrow changes to haematopoietic to produce more red blood cells
name the x2 primary organ structures of the nervous system and their components
CNS > Brain; spine; optic nerve
PNS > Special senses; all other tissues outside the CNS
what are the functions of the x3 principles of the nervous system
1. sensory input
2. integration
3. motor output
- sensory receptors detect sensation
- processes input and decides what should be done about it
- response when nervous system activates specific part of body
What is the function of the Central Nervous System (CNS)?
Control centre of systems
what CNS component performs…
1. Complex integrative activities
2. Controls voluntary and involuntary
Brain
The _____ relays info to and from the _____ and performs _____ complex _____ ______.
The (spine) relays info to and from the (brain) and performs (less) complex (integrative) (activities).
The special senses input sensory info to the brain. what are some related senses?
sight, sound, smell, taste, equilibrium
What is the function of the Peripheral Nervous System (PNS)?
Links CNS to other systems + sense organs
True or false,
“the PNS takes information in only 1 direction”
FALSE
the PNS takes info in both directions and terms of the body
Name the x9 endocrine system organ structures
Pineal gland
Hypothalamus/Pituitary gland
Thyroid gland
Parathyroid gland
Thymus
Adrenal glands
Kidneys
Pancreas
Gonads
what body system releases hormones to regulate bodily activity?
endocrine system
what are hormones?
chemical messengers
transported but the blood from the endocrine gland/tissue to target site
What is the function of the Pineal gland?
Day night rhythms (melatonin)
True or false,
The Hypothalamus/Pituitary Gland
- Control other endocrine glands
- Regulates growth
- Fluid balance
TRUE
What is the function of the Thyroid gland?
Metabolic rate
Ca levels
What is the function of the Parathyroid gland?
Ca levels
What endocrine component controls T-cell maturation/maturation of lymphocytes?
Thymus
the Adrenal gland…
1. release different _____
2. _____ and _____ balance (aldosterone)
3. _____ metabolism (cortisol)
4. cardio. and resp. function (adrenaline)
- release different (hormones)
- (water) and (mineral) balance = (eg: aldosterone)
- (tissue) metabolism = (eg: cortisol)
- cardio. and resp. function = (eg: adrenaline)
the endocrine kidneys function to…
> produce red blood cells
> Ca levels
> blood pressure _____
> blood pressure (up)
What endocrine component is responsible for glucose control?
pancreas
Function of the Gonads?
Sexual characteristics + reproduction
What is the IGF hormone?
Insulin-like Growth Hormone