Final Flashcards
What are the three characteristics of the respiratory membrane?
Respiratory Membrane
-
Thin Membrane
- __Simple squamous cell ET = quick exchange
-
Macrophages
- __Eats pathogens (immunity)
-
Surfactant-secreting cells
- __Function: lubrication
How does smoking affect the respiratory membrane?
Smoker’s Respiratory Membrane
- Smoking kills surfactant-secreting cells
- __No lubrication causes the alveoli to stick to each other
- Smoking kills macrophages
- __No immunity
- Smoking causes the thin membrane to thicken
- Thickening makes it harder to gasous exchange
- Harder to breathe
What is the function of the respiratory system?
Function of Respiratory System
- Gas exchange (of the bloodstream and alveoli)
- CO2 (out)
- O2 (in)
What is inhalation?
Inhalation
- The process of drawing in air and other substances into the airways and lungs
- O2 in
What are the five steps of inhalation?
Inhalation (5) Steps
- Diaphragm moves down = contraction
-
Increase in thoracic cavity space
- The chest is bigger in volume
- The lungs & thoracic cavity move as an unit due to visceral pleura
- Lungs expand
- Pressure decreases in the lungs
- Decrease in alveoli/air sacs
- Air moves out due to pressure gradient
- From high to low pressure
- Passive process
What is happening based on the relationship of volume and pressure?
Increase Volume = Decrease Pressure
Inhalation
Increase Volume = Decrease Pressure
What is exhalation?
Exhalation
- The act of breathing out air from the lungs and airways
What are the five steps of exhalation?
Exhalation (5) Steps
- Diaphragm moves UP = relaxes
- Thoracic cavity gets smaller = decrease in volume
- Lungs get smaller (decrease)
- Pressure increases in alveoli
- Air moves OUT from high to low pressure due to pressure gradient
What is happening based on the relationship between volume and pressure?
Decrease Volume = Increase Pressure
Exhalation
Decrease Volume = Increase Pressure
What organs are involved in the pathway of inhalation?
Pathway of Inhalation
- (Start) Nose
- Pharynx
- Larynx
- Trachae
- Bronchi
- Lungs
- Alveoli (air sacs)
- Respiratory membrane
- (Finish) Capillaries = bloodstream
What is between the alveoli (air sacs) and capillaries (blood)?
Thin layer called the respiratory membrane
What is the relationship between the visceral pleura and the thoracic cavity?
- The visceral pleura allows the thoracic cavity and the lungs to move as a unit
- The visceral pleura adheres the lungs to the thoracic cavity via negative pressure
What are the three hormones of digestion?
(3) Hormones of Digestion
- Gastrin
- Secretin
- CCK (chole-cysto-kin-in)
What is the origin of gastrin?
Origin of Gastrin
- Gastrin is made by the stomach
What is the target of gastrin?
Target of Gastrin
- Gastrin targets the G & Chief cells in the stomach
What is known as the “stomach hormone”?
Gastrin = stomach hormone
What is the purpose of gastrin?
The purpose of gastrin is to increase HCl production
-
Increase HCl production:
- Increase stomach acid & increase pepsin→
- Increase stomach activity →
- Opens pyloric sphincter (stomach is trying to empty faster)
What is the origin, target, & action of gastrin?
Gastrin
- Origin: stomach
- Target: G & Chief cells in stomach
- Action: Increase HCl production
What is the origin of secretin?
Origin of Secretin
- Made in the SI (small intestine)
What is the target of secretin?
The target of secretin is the pancrease
What is the purpose of secretin?
The purpose of secretin:
Increase buffer released into the SI to reduce acidity
Makes the SI more basic & less acidic
What is the origin, target, & action of secretin?
Secretin
- Origin: SI
- Target: Pancreas
- Action: Increases buffers to make the SI less acidic
What is the origin of CCK*?
CCK: chole-cysto-kin-in
Cholecystokinin (CCK)
- Made by the small intestine (SI)
What is the target of *CCK?
*CCK: chole-cysto-kin-in
Cholecystokinin (CCK)’s target is the bile system
- Bile helps to break down fat
What is the action of *CCK?
*CCK: chole-cysto-kin-in
Cholecystokinin (CCK)’s action is to increase fat digestion:
- Closes the pyloric sphincter→Stops stomach activity
- *The more fat in the diet = longer for SI to empty
What is the origin, target, & action of CCK (cholecystokinin)?
CCK (cholecystokinin)
- Origin: SI
- Target: bile system
- Action: increase fat digestion to close pyloric sphincter to stop stomach activity
What are the (4) phases/reflexes of digestion?
(4) Phases of Digestion
- Cephalic phase = brain
- Gastric phase = stomach
- Intestional phase = small intestine
- Colic phase = colon (large intestine)
What is occurring during the cephalic phase?
Cephalic Phase
- “Brain” = sees, imagines, smells food
- Increase in hunger
- Starts stomach activity (“growling”)
- Increase in gastrin (tells the stomach “to go”)
What hormone is being used during the cephalic phase?
Cephalic Phase (brain) causes:
-
Increases gastrin ⇒Increases stomach activity
- Tells the stomach to “go”
- OPENS pyloric sphincter
What is occurring during the gastric phase?
Gastric Phase
- “Stomach” = when you eat food
-
Increase gastrin→Increase stomach activity
- Increase in gastrin (tells the stomach “to go”)
- Causes pyloric sphincter to OPEN
What hormone is being used during the gastric phase?
Gastric Phase (stomach) casuses:
-
Increases gastrin ⇒Increases stomach activity
- Tells the stomach to “go”
- OPENS pyloric sphincter
What is occurring during the intestinal phase?
Intestinal Phase
- “Entrails/Small instestines” → Chyme enters from stomach
-
Decreases/ STOPS stomach activity by:
- Secreting increase secretin
- Secreting increase CCK for increase bile
- Food absorption → Closes pyloric sphincter
What hormones are used during the intestinal phase?
Intestinal Phase (SI) casuses:
-
Increases secretin ⇒Decreases stomach activity
- Tells the stomach to “STOP”
-
Increase CCK ⇒Increases bile (fat absorpotion)
- Closes pyloric sphincter
What is occurring during the colic phase?
Colic Phase
- “Colonic” = Large intestines
- Pushes matter via peristalsis to make room
- ~1 hour after eating
- Ileocecal sphincter →External Anal→Internal Anal
What are the six (6) sphincters of the GI tract?
GI Tract Sphincters
- Upper esophageal
- Lower esophageal
- Pyloric sphincter
- Ileocecal sphincter
- External anal sphincter
- Internal anal sphincter
What sphincter is between the mouth and top esophagus?
Mouth→?→Esophagus top
Upper Esophageal Sphincter
- Top of the esophagus
- Between the mouth and esophagus
What sphincter is between the bottom of the esophagus and top of the stomach?
Esophagus bottom →?→Stomach Top
Lower Esophageal Sphincter
- Bottom of esophagus
- “Gastro-esophageal”
What sphincter is between the stomach bottom and small intestine?
Stomach bottom →?→Small Intestine
Pyloric Sphincter
- Bottom of stomach
What sphincter is between the distal small intestine and large intestine?
Distal small intestine →?→Large Intestine
Ileocecal Sphincter
- Bottom (distal) of small intestine
What sphincter is between the distal large intestine and toilet that is voluntary?
Distal large intestine→?→Toilet
Voluntary
External Anal Sphincter
- Bottom (distal) of large intestine
- Voluntary control (skeletal muscles)
What sphincter is between the distal large intestine and toilet and is involuntary?
Distal large intestine→?→Toilet
Involuntary
Internal Anal Sphincter
- Bottom (distal) of large intestine
-
Involuntary control (reflex)
- Smooth muscle
What is the composition of fiber?
Fiber
- Made of cellulose (plant fiber)
- Fiber/cellulose is undigestable to human
- No enzymes to digest it
- Fiber/cellulose is undigestable to human
What is the purpose of fiber?
Purpose of Fiber
- To push feces out faster
- Makes the large intestine push out faster
- Roughage adds speed
-genesis
-genesis
- To form (to make)
- Put of absorptive state
- When you eat
lipo-
Fat
Lipogenesis
Making/storing fat
- absorptive state
Glyco-
Sugar or carb
Glycogenesis
Making/storing sugar or carb
- absorptive state
Proteo-
Protein
Pepto-
Protein
Proteogenesis
Make/store protein
- absorptive state
Peptogenesis
Make/store protein
- absorptive state
-lysis
-lysis
- To destroy
- Post-absorptive state (not eating)
- Digestive state
Lipolysis
Destroying/breaking down fats
- Digestive state
Glycolysis
Destroying/breaking down sugar or carb
- Digestive state
Proteolysis
Destroy/breaking down protein
- digestive state
Peptolysis
Destroying/breaking down proteins
- digestive state
What are the characterisitcs of fat-soluable vitamins?
Fat-Soluable Vitamin Characterisitcs
- Stored in fat
- Hydrophobic (water fearing)
What are the characteristics of water-soluble vitamins?
Water-Soluble Vitamin Characteristics
- Not stored in fat
- “Pee out”
What are the four fat-soluble vitamins?
“All Kittens Eat Dinner”
Fat-Soluble Vitamins
- Vitamin A
- Vitamin K
- Vitamin E
- Vitamin D
“All Kittens Eat Dinner”
What are the two water-soluble vitmans?
“Clear Blue”
Water-Soluble Vitamins
- Vitamin C
- Vitamin B
“Clear Blue”
What is the type & function of:
Vitamin K
Vitamin K
- Type: Fat-soluble vitamin
- Function: blood clotting
What is the type & function of:
Vitamin E
Vitamin E
- Type: fat-soluble vitamin
- Function: collagen synthesis
- “elastic skin”
What is the type & function of:
Vitamin D
Vitamin D
- Type: fat-soluble vitamin
- Function: calcium absorption
What is the type & function of:
Vitamin A
Vitamin A
- Type: fat-soluble vitamin
- Function: vision pigments
What is the type & function of:
Vitamin C
Vitamin C
- Type: water-soluble vitamin
- Function: immunity
- Immune cells
- Co-factor for metabolism
What is the type & function of:
Vitamin B
Vitamin B
- Type: water-soluble vitamin
- Function: cofactor for metabolism
Trace the pathway a kidney stone would take from where it was formed until it leaves the body
Kidney→Ureter→Bladder→Urethra
What is the color of normal urine?
The color of normal urine ranges from colorless to amber yellow
If urine has a pinkish color what would that indicate for someone with a kidney stone?
- The pinkish color of urine from a patient with a kidney stone indicates bleeding and damage of the ureters.
- The kidney stone’s sharp edges are damaging the ureter’s walls as it is passing down to the bladder.
What causes kidney stones?
Causes of Kidney Stones
- Dehydration (low H2O)
- Kidney disease
- High protein diet
If a kidney stone is not small enough to pass on its own, what are two options a doctor could do to remove the large kidney stone.
The doctor would have two options:
-
Break up the stone into smaller pieces so it can pass
- Shockwave/ ultrasound therapy
- Laser therapy
- Fluid therapy
-
Surgically remove the stone
- Surgery
What substances are able to enter the nephron of the kidney? How do you know?
“Some Uricorns Use Paint With Glitter”
Sustances that enter the nephron are small molecules:
- Sodium (Na+)
- Urea
- Uric acid
- Potassium (K+)
- Water (H2O)
- Glucose (C6H12O6)
“Some Unicorns Use Paint With Glitter”
What substances are not able to enter the nephron of the kidney? How do you know?
“Alice’s White Rabbit”
Large molecules are not able to enter the nephron:
- Albumin
- WBC’s
- RBC’s
What substances are reabsorbed into the blood stream from the kidney? What processes moves these substances?
“Water Buffalos”
“All Penguins Skate Gleefully”
Reabsorbed substances are:
- Water→passive transport
- Bicarbonate (HCO3-)→passive transport
- Amino acids→active transport
- Potassium→active transport
- Sodium→active transport
- Glucose→active transport
“Water Buffalos” = passive
“All Penguins Skate Gleefully” = active
What substances are secreted (pumped) out of the blood into the kidney? What processes moves these substances?
“Unicorns Wander Unconcerned”
“Prince Harry Speaks Properly”
Secreted (pumped out) substances are:
- Urea→passive transport
- Water→passive transport
- Uric acid→passive transport
- Poisons/drugs→active transport (secreted)
- H+ ions→active transport (secreted)
- Sodium→active transport
- Potassium→active transport
What are the waste products found in urine?
Waste Products in Urine
- Urea (passive transport)
- Uric acid (passive transport)
- *Poisons/drugs (active transport)
- *H+ ions (active transport)
*Secreted
What happens to the acidity of urine as it moves through the kidney?
As urine moves through the kidney the urine’s pH becomes lower due to:
- H+ ions are being secreted into the urine
- Bicarbonate (HCO3-) is being absorbed into the blood stream
Why are salt and water levels variable in urine? How are these levels controlled?
- The salt and water levels vary in urine due to diet and environment
- Salt and water levels are controlled by these hormones:
-
ADH (retains water)
- Reabsorbs H2O from urine
-
Aldosterone
- Reabsorbs salts from urine
-
ADH (retains water)
How would you classify this girl’s acid-base status?
Respiratory Acidosis
In the pathway of sperm, what organ is between the epididymis and the prostate?
Vas Deferens
What is the function of the vas deferens?
Vas deferens = sperm highway/ transport tube
Will the nurse’s mistake increase or decrease the “saltiness” of the interstitual fluid?
Increase
- The patient is recieving saline solution that is 4x saltier than it should have been.
- This will make the interstitual fluid hypertonic (has a greater solute concentration)
Given your knowledge of osmosis, will this cause the cells in the body to increase or decrease in size? Explain your answer?
The cells will decrease in size (shrink)
- The interstitial fluid is four times the concentration than the body cells
- The IV solution is hypertonic
- The RBC’s are hypotonic
-
Osmoss is the movement of water molecules from low to high solute concentrations.
- Since the body cells (RBC’s) are hypotonic the water in them will move out, causing them to shrink
Why does this patient have pitting edema and inspiratory rales?
- The water molecules are moving out of the body cells and going to the higher solute concentration in the interstitial fluid.
- Therefore, the fluid is accumulating around the body cells, but not going into the cells.
How would this increase in salt load affect the patient’s blood-aldosterone level? Why?
Decrease aldosterone = Decrease Na+ reabsorpotion= Increase Urine
- In order to maintain homeostasis, the increase in salt will need to be excreted out.
- The body will urinate more by decreasing the hormone aldosterone which causes the sodium channels to be removed, thereby a decrease in sodium reabsorption
How would the body try to compensate for the girl’s acid-base imbalance?
Metabolic Compensation
- Decrease H+ by secreting out (peeing acid out)
- Increase HCO3- by reabsorbing in kidneys
How would you classify her acid-base disturbance?
Metabolic Alkalosis
Why might excessive vomitting cause her particular acid-base disturbance?
The excessive vomitting causes the body to lose acidity, thus increasing pH.
How would the body compensate for this acid-base disturbance?
Respiratory Compensation (left shift)
- Breathing slower (hypoventilation) in order to retain CO2 thereby increasing H+ blood acidity
What organs does the sperm travel for its passage?
Passage of Sperm
- Produced in the testes → stored in epididymis → transported in vas deferens → male urethra during ejaculation
- What is the function of the testes?
- Are the testes internal or external?
Testes
- Function: spermatogenesis (produces sperm) & testosterone
- Internal
- What is the function of the epididymis?
- Is the epididymis internal or external?
Epididymis
-
Function: sperm storage and maturation
- “Sperm college”
- Internal
- What is the function of the vas deferens?
- Are the vas deferens internal or external?
Vas Deferens
-
Function: transports sperm
- “Sperm highway”
- Internal
- What is the function of the scrotum?
- Is the scrotum internal or external?
Scrotum
- Function: temperature control for testes
- External
- What is the function of the seminal vesicles?
- Are the seminal vesicles internal or external?
Seminal Vesicles (behind bladder)
-
Function: makes fluid (semen)
- Clotting factor
- Mucus
- Buffer
- Sugar
- Internal
- What is the function of the prostate gland?
- Is the prostate gland internal or external?
Prostate Gland
-
Function: makes fluids (semen
- Activation
- Mucus
- Buffer
- Clot buster
- Internal
- What is the function of the bulbo-urethral/ Cowper’s gland?
- Is the bulbo-urethral/ Cowper’s gland internal or external?
Bulbo-urethral/ Cowper’s gland
-
Function: makes fluids
- Mucus
- Buffer
- Internal
- What is the function of the penis?
- Is the penis internal or external?
Penis
- Function: copulation and urination
- External
- What is the function of the corpora cavernosa?
- Is the corpora cavernosa internal or external?
Corpora Cavernosa
-
Function: erectile tissues for penetration
- Structures within the penis
- External
- What is the function of the corpus spongiosum?
- Is the corpus spongiosum internal or external?
Corpus Spongiosum
- Function: erectile tissues around the urethra
- External
The seminal vesicles, prostate gland, and bulbo-urethral glands are considered to be “accessory glands” because they do not directly make sperm. What do these glands do and why is it necessary?
Fluids Made By the Glands
-
Seminal vesicles
- Sugar (glucose)
- Buffer
- Mucus
- Clotting factor
-
Prostate gland
- Buffer
- Mucus
- Clot buster (allows the sperm to swim with 20 min. delay)
- Activator (tells the sperm to swim)
-
Cowper’s/bulbo-urethral gland
- Mucus
- Buffer
What type of fluid is made by the seminal vesicles?
Seminal Vesicles
- Sugar (glucose)
- Buffer
- Mucus
- Clotting factor
What type of fluid is made by the prostate gland?
Prostate Gland
- Buffer
- Mucus
- Clot buster (allows the sperm to swim with 20 min. delay)
- Activator (tells the sperm to swim)
What type of fluid is made by the Cowper’s/bulbo-urethral gland?
Cowper’s/Bulbo-urethral Gland
- Mucus
- Buffer
How does blood flow relate to an erection?
- The penis contains three elongated cylinders of erectile tissue
- 2 corpora cavernosa
- 1 corpora spongiosum
- The erectile tissues enlarge with blood during sexual excitement, which causes the penis to become rigid and enlarged
- What is the function of the ovaries?
- Are the ovaries internal or external?
Ovaries
- Function: produces oocytes (egg cells) and hormones (estrogen and progesterone)
- Internal
What does homologous means?
Similiar as
Where does ovulation occur?
Ovary
Where does conception/fertilization occur?
Fallopian tubes
Where does pregnancy occur?
Uterus
What does it mean when your text says that “the clitoris is homologous to the penis and the labia are homologous to the scrotum?
- Male and female organs develop from the same embyronic structures, therefore are homologous
- Thus, the penis is homologous to the clitoris and the scrotum is homologous to the labia majora
What organs of the female are considered part of the vulva?
Vulva (external genitals of female)
- Labia majora
- Labia minora
- Clitoris
- Glands (vestibular)
- Vagina
What organs of the female are considered part of the vestibule?
Vestibule (“entrance”)
- Labia minora (not labia majora)
- Clitorus
- Vaginal orifice
- Vestibular glands
What organs of the female are considered part of the perineum?
Perineum (“peri-care”)
- Vulva (external genitals of female)
- Labia majora
- Labia minora
- Clitoris
- Glands (vestibular)
- Vagina
- Anus
- Mons pubis
- What is the function of the fallopian tubes?
- Are the fallopian tubes internal or external?
Fallopian Tubes
- Function: Oocyte transport
- Internal