DHUBS1 - EXTRA QUESTIONS Flashcards
which myofibril contains thick protein filaments?
myosin
in skeletal muscle, which energy source requires oxygen to be present for production of ATP?
glycogen: aerobic metabolism
which os the following functions of the ovary are classified as endocrine functions?
production of estrogen and progestorone
which factor influences the tension produced by a single muscle fibre?
sacromere length
the cortical bone is also known as…
compact bone
where is bone marrow located
within long bones
metabolism is primarily regulated by which gland?
thyroid gland
what is NOT a correct function of the skeletal system
generation of heat
describe two key components of blood, including their percentage in whole blood
- plasma (55%)
- formed elements:
leukocytes (~1%)
red blood cells (45%)
what are cardiac pacemaker cells?
- myocardial conducting cells
- they regualte the electrical impulses that control the heartbeat
the flow of blood around the heart
- superior and inferior vena cava
- right atrium
- tricuspid valve
- right centricle
- pulmonary valve
- pulmonary trunk
- lungs
- left atrium
- mitral valve
- left ventricle
- aortic valve
- body tissues
how do red blood cells carry oxygen?
bound to haemoglobin
what is haematopoiesis?
the process by which the body produces blood cells
why is movement critical to cartilage health?
movement is mechanical nurtition for cartilage. it keeps cartilage healthy, lubricated and functional which is ennestion fro pain free and effective joint movement
four types of bone
short bone
long bone
flat bone
irregular bone
how does the endocrine system maintain internal homeostasis?
by producing and regulating hormones
which type of cell secretes hormones?
endocrine cells
four types of bone cells and describe
- osteocytes: a mechanosensing cell
- osteoblasts: a bone fomring cell
- osteoclasts: a bone resorbing cell
- bone lining cells: cells that line the bone surface
which valve seperates the right atrium and right ventricel?
tricuspid
which valve seperates the left atrium and the left valve?
mitral
which region of the heart generates electrical activity the fastest?
SA node
