What are the 4 different types of tissues in our body ? - Answers - connective
- muscular
- nervous
- epithelial
What are the roles of each of the 4 types of tissues ? - Answers - muscular tissue : locomotion,
movement of bones
- nervous tissue : communication between receptors , CNS PNS and effectors.
- connective tissue : support , insulation , energy storage , separates.
What is the integumentary system ? - Answers The set of organs and tissues that form and external layer
which protect the body from radiation, chemical extremities and also pathogens like bacteria , fungus ,
virus etc.
What are the 3 main layers of the integumentary system ? - Answers - epidermis
- dermis
- Hypodermis
What are the two divisions of the epidermis and what do they contain ? - Answers - lower epidermis ;
which contain melanocytes , keratinocytes and Langerhans (WBCs).
- upper epidermis ; which contains two layers of dead cells and tissues which primarily act as a physical
barrier
What are the two main divisions of the dermis layer ? and what do they do ? - Answers - papillary dermis
; which contain sensory receptors , blood vessels and loose connective tissues
- reticular dermis ; which contain the hair follicles , certain glands such as sweat glands and thick dense
connective tissue.
What does the hypodermis contain? - Answers Layers pf adipose tissue which act as insulators , shock
absorbers and energy stores.
Define the term skeleton - Answers Is a collective term used to describe all the bones and joints in a
body which provides support, movement and protection.
5 roles of the skeletal system are ? - Answers - protection
- movement
,- RBC production (haematopoiesis)
- support
- mineral storage
How many bones are there in the human skull ? - Answers 8 cranial and 14 facial bones
What are the trunk bones ? - Answers Ribcage , sternum and all vertebrae
what are the limb bones - Answers Femur
tibia
fibula
ulna
radius
humerus
carpels
metacarpals
phalanges
tarsals
metatarsals
phalanges
How many bones are there in the vertebral column ? - Answers 33
How is the human vertebral column sectioned ? - Answers - cervical
- thoracic
- lumbar
- sacral
- coccyx
What are skeletal muscles ? - Answers Muscles that are attached to bones via tendons which promote
the movement of the skeleton.
Characteristics of a skeletal muscle (3) - Answers - striated
, - multinucleated
- voluntary
Histology of skeletal muscle - Answers Major muscle (covered by epimysium) -> fascicles (covered by
perimysium) -> individual muscle fibres (covered by endomysium) , which are also surrounded by
sarcolemma -> myofibrils (surrounded by sarcoplasm) and finally the sarcomere .
How do skeletal muscles contribute towards homeostasis ? - Answers - repeated muscle contractions
which generate heat and regulate optimal body temperature.
What are the other two types of muscles found in the human body ? - Answers smooth and cardiac
muscles
What are the 3 layers of the heart ? - Answers - endocardium
- myocardium
- epicardium
What does the buccal cavity convert the food into ? - Answers Bolus
What are the two major gland complexes in the mouth ?and what do they secrete ? - Answers -
serenous glands : secrete enzymes such as lipase and amylase.
- mucinous glands : secrete mucin which makes the food soggy and wet.
What does amylase do? - Answers starch into glucose
What does lipase do ? - Answers Lipids into fatty acids and glycerol
Name the 4 types of teeth found in a human and the quantity of each and what are they're roles ? -
Answers - incisors (8) - cutting
- canines (4) - gripping and pulling
- premolars (8) - grinding
- molars (12) - grinding
Gingiva is the technical name for ? - Answers Gums
Define peristalsis . - Answers The alternative contractions in the GI track to move the bolus down or
along the track.
What are the three parts of the pharynx ? - Answers - nasopharynx
- oropharynx