BIO 253 FINAL EXAM 2023-2024 ACTUAL EXAM TEST BANK 200
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES |AGRADE
What ion is at a higher concentration in the extracellular fluid than in the
intracellular fluid?
Sodium
What is the definition of homeostasis?
maintenance of a stable internal environment.
The lungs are what to the heart?
lateral
The knee is what to the ankle ?
proximal
This plane divides the body into equal right and left halves?
Sagittal Plane
This plane divides the body into anterior and posterior portions?
Frontal Plane
This plane divides the body from top to bottom?
Transverse plane
The breastbone is what to the ribs?
medial
the stomach is what to the heart?
inferior
the knee is what to the hip?
distal
The serous membrane that lines the wall of the abdominal cavity is called?
partial peritoneum
The membrane that covers the surface of the abdominopelvic organs is called the?
Visceral peritoneum
A structure is what to another if it is located farther from the attachment of an
appendage to the trunk?
Distal
What muscle separates the thoracic and abdominal cavities?
Diaphragm
In what body cavity are the lungs and heart located?
thoracic cavity
organ systems working together to maintain life is called?
organism
If an ion has 17 protons and 19 electrons what is the charge of the ion?
-2
A atom with two shared electrons is called ?
convoluted bond
What helps with blood clotting
Vitamin K
What is needed to make clotting factors ?
Vitamin k, Calcium , platelets, clotting factors( fibrinogen, thrombin)
What are the 3 plexuses?
cervical plexus, brachial plexus, lumbosacral plexus
What is white matter?
myelinated axons
What is gray matter?
cell bodies and nonmyelinated fibers
what are the regions of the abdominal cavity?
R/L Hypochondriac
Epigastric
R/L Lateral (lumbar)
BIO 253 EXAM 3 LATEST 2023-2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES |AGRADE
What happens when rbc break down – ANSWER- When dead they
transport to the spleen
Iron And hemoglobin break apart resulting in biliruben
Biliruben released in to the plasma and recirculated to the liver
What antigens does type a blood have and antibodies – ANSWERAntigen a
B antibodies
What antigens does type b blood have and antibodies – ANSWER- B
antigens
A antibodies
What antigens does type AB blood have and antibodies – ANSWERType AB antigens
No antibodies
What antigens does type o blood have and antibodies – ANSWER- No
antigens
A and b antibodies
five leukocytes – ANSWER- neutrophils, lymphocytes, monocytes,
eosinophils, basophils
neutrophils function: inflammatory response – ANSWER- Cellular
defense 65% wbc
Eosinophil function – ANSWER- Cellular defense parasitre worms
allergic reaction
Basophil function – ANSWER- release histamine and other mediators of
inflammation; contain heparin, an anticoagulant
Lymphocytes functions are? – ANSWER- destroy cancer cells, present
antigens to activate other cells in immune system, secrete antibodies,
and serve in immune memory
Monocytes funtion – ANSWER- Largest wbc mobile and highly
phagocytic
Orgin and function of platelet – ANSWER- Homeostasis
Major propertire: agglutination, adehesiveness and aggregation
Starts in bone marrow
Process of hemostasis and clot dissolution – ANSWERVasoconstriction causes temp closure of vessel and lessens blood loss
Platelets plug formation after damage or injury
Sticky platelets form plug
Coagulation 3 step
Fibrinolysis
Plasim released by damaged crlls to dissolve clot
Structure and function or pericardial sac – ANSWER- Double wall sac
contained the heart and roots of great vessel
2 layers fibrous and serious
Enclosed pericardial cavity which contains pericardial cavity
BIO 253 EXAM 2 LATEST 2023-2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS WITH
RATIONALES |AGRADE
What is the pathway for hearing – ANSWER- Pinna, external auditory
meatus, tympanic membrane, bone ossicle, oval window, scala vestibuli,
helicotrema, scala tympani, spiral organ, hair cells, cochlear nerve,
auditory cortex
Mechanoreceptors different types and what is it for – ANSWER- Touch
and pressure
Vicero mechanoreceptors (eating and digestion and kidney filtration)
Hair cells in the ear absorb sound waves
Chemoreceptors – ANSWER- Taste
Viseral chemo receptors – ANSWER- Homeostasis that checks level
such as hydrogen oxygen sodium levels
Thermoreceptors – ANSWER- respond to changes in temperature adapts
Nocireceptors – ANSWER- pain receptors
Do not adapt
Proprioceptors – ANSWER- monitor the position and movement of
skeletal muscles and joints
Photoreceptors – ANSWER- respond to light
What plexus does the phrenic nerve belong to – ANSWER- Cervical
plexus
What plexus does the radial and median and ulnar nerves belong to –
ANSWER- Brachial plexus
What plexus does the sciatic nerve belong to – ANSWER- Lumbosacral
plexus
What is a plexus – ANSWER- A safeguard or alternate pathway such as
if somebody is injured in their sign they may be able to walk again due
to a plexus
What cranial nerves control eye movement – ANSWER- Trochler
Occulomotor
Abducens
What is the vagus nerve – ANSWER- The longest running cranial nerve