Organs Flashcards
Focus dr. Yrsa class
What elements form bone tissue?
Calcium and phosphorus
What focus on bone tissue?
osteoblasts
What system sends blood to bone?
Haversian canal- has nerves too for osteocytes
True or false- Smooth muscle is the only nonvoluntary muscle
False- smooth and cardiac muscles are both involuntary!
Whats the lamellae?
Bone with ring of calcium
True or false- Cardiac muscles has no striations
False- smooth doesnt not cardiac
True or false- Skeletal is multinucleate and smooth is single nucleus
True
True or false- Veins carry blood to organs
False- away from organs
What does blood contain?
RBC, WBC and platelets
Whats the point of the spleen?
filter toxins in the blood
What part of the body offers a physical barrier?
Skin
What is the point of lymph noes?
return lost fluid by blood to circulatory system
How is temperature an immune response?
Pathogens have a narrow temperature range- beyond that = less reproductoin
What is an inflammatory response?
Release of histamine and prostaglandins (allow blood to migrate to infection site)
What protein released by cell infected by virus?
interferon
What cell controls specific immune response?
T cells
Whats humoral immunity?
Lymphocyte building specific antibodies to tag proteins so they can be destroyed by phagocytes
Whats cell mediated immunity?
Killer T cells - transfer protein to pathogenic proteins to led fluid leak out of membrane- rupturing them
What are the steps to make a vaccine?
- Pathogen must be in unhealthy animal
- pathogen must be isolated and grown in lab
- pathogen injected in healthy animal - must get disease
- pathogen AGAIN must be isolated from second and grown in lab
Whats chyme?
Broken down food- found in intestine.
What part of the body makes sperm
testes- seminiferous tubules
Whats the purpose of the bulblurethral gland?
It secretes an alkaline fluid to neutralize acid traces of urine in urethra
Where do fertilized egg plant itself?
Endometrium
Which is ductless- endocrine and exocrine?
endocrine
Whats the difference between steroid and nonsteroid hormones?
Steroid: produced from lipid- able to pass through cell membrane
Nonsteroid: made of amino acids- hormones bind to receptors
Whats the difference between somatic or autonomic nervous system?
somatic: Regulate activities under voluntary control
Automic: Regulate activities under involuntary control
Whats in the lower brain stem?
pons, medulla oblongata and spinal chord
Whats upper brain stem in charge of ?
regulate endocrine activities
Whats lower brain stem in charge of ?
Homeostasis
Which neuron sends message for body to brain?
sensory
What does dermis contain?
Blood vessel, nerve & smooth muscle
What does subcutaneous?
Made of connective tissue- insulate, store energy and protect the body
