Answers
What are the 4 different types of tissues in our body ? - Correct Answer - connective
- muscular
- nervous
- epithelial
What are the roles of each of the 4 types of tissues ? - Correct Answer - 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 ? - Correct Answer 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 ? - Correct Answer -
epidermis
- dermis
- Hypodermis
What are the two divisions of the epidermis and what do they contain ? - Correct
Answer - 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 ? - Correct
Answer - 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? - Correct Answer Layers pf adipose tissue which
act as insulators , shock absorbers and energy stores.
Define the term skeleton - Correct Answer 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 ? - Correct Answer - protection
- movement
- RBC production (haematopoiesis)
- support
- mineral storage
, How many bones are there in the human skull ? - Correct Answer 8 cranial and 14
facial bones
What are the trunk bones ? - Correct Answer Ribcage , sternum and all vertebrae
what are the limb bones - Correct Answer Femur
tibia
fibula
ulna
radius
humerus
carpels
metacarpals
phalanges
tarsals
metatarsals
phalanges
How many bones are there in the vertebral column ? - Correct Answer 33
How is the human vertebral column sectioned ? - Correct Answer - cervical
- thoracic
- lumbar
- sacral
- coccyx
What are skeletal muscles ? - Correct Answer Muscles that are attached to bones via
tendons which promote the movement of the skeleton.
Characteristics of a skeletal muscle (3) - Correct Answer - striated
- multinucleated
- voluntary
Histology of skeletal muscle - Correct Answer 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 ? - Correct Answer -
repeated muscle contractions which generate heat and regulate optimal body
temperature.
What are the other two types of muscles found in the human body ? - Correct Answer
smooth and cardiac muscles
What are the 3 layers of the heart ? - Correct Answer - endocardium