Explain why the lymphatic system is a one-way system, whereas the blood vascular system is a two-way system.
Blood vessels form a complete circuit from and to the heart. The lymphatic system lacks arteries and begins with blind-ended lymph capillaries. Thus, it is a "return" system only.
What name is given to the terminal duct draining most of the body?
Which portion of the body is drained by the right lymphatic duct?
Right half of upper torso and head; right arm.
Note three areas where lymph nodes are densely clustered.
axillary, cervical & inguinal
conduit for both air and food
The "gullet"; no digestive/absorptive function
Folds of the gastric mucosa
Valve at the junction of the small and large intestines
Primary region of food and water absorption
Absorbs water and forms feces
Initiates protein digestion
Organ distal to the stomach
Valve controlling food movement from the stomach into the duodenum
Serous lining of the abdominal cavity wall
Principal site for the synthesis of vitamin K by microorganisms
region containing two sphincters through which feces are expelled from the body
what is the role of the gallbladder?
Stores and concentrates bile made by the liver.
where would you find developing sperm?
where would you find interstitial cells?
Adjacent to seminiferous tubules in the testes
where would you find sustentacular cells?
In the wall of the seminiferous tubules.
copulatory organ/penetrating device
muscular passage way conveying sperm to the ejaculatory duct; in the spermatic cord
transports both sperm and urine
sperm maturation site
location of the testis in the adult male
loose fold of skin encircling the glans penis
portion of the urethra between the prostate gland and the penis
empties a secretion into the prostatic urethra
empties a secretion into the membranous urethra
Using the following terms, trace the pathway of sperm from the testes to the urethra:
seminiferous tubule to rete testis to epididymis to ductus deference
Name the structures composing the external genitalia, or vulva, of the female
mons pubis, labia majora, labia minora, clitoris, vaginal and urethral openings, hymen, and greater vestibular glands
site of fetal development
"fertilized egg" typically formed here
becomes erect during sexual excitement
partially closes the vaginal canal; a membrane
produces oocytes, estrogens, and progesterone
fingerlike ends of the uterine tube
Put the following vestibular-perineal structures in their proper order from the anterior to the posterior aspect: vaginal orifice, anus, urethral opening, and clitoris
clitoris, urethral opening, vaginal orifice, anus
What is the function of the cavernous bodies seen in the male penis?
This tissue can become engorge with blood, thus making the penis stiff and more effective as a penetrating device
Name the three layers of the uterine wall from the inside out:
endometrium, myometrium, serosa (perimetrium)
Which of the 3 layers of the uterine wall is sloughed off during menses?
Which of the 3 layers of the uterine wall contracts during childbirth?
glands that produce milk during lactation
subdivisions of mammary lobes that contain alveoli
enlarged storage chambers for milk
ducts connecting alveoli to the lactiferous sinus
pigmented area surrounding the nipple
Releases milk to outside
Site of filtrate formation
Primary site of tubular reabsorption
Proximal convulated tubule
Secondarily important site of tubular reabsorption
Distal convulated tubule
Structure that conveys the processed filtrate (urine) to the renal pelvis
Blood supply that directly receives substances from the tubular cells
Its inner (visceral) membrane forms part of the filtration membrane
Trace the anatomical pathway of a molecule of creatinine (metabolic waste) from the glomerular capsue to the urethra.
Glomerular capsule-->proximal convulated tubule-->loop of Henle-->distal convulated tubule-->collecting tubule-->minor calyx-->major calyx-->renal pelvis-->ureter--> bladder-->urethra
Connects the larynx to the primary bronchi
Food passageway posterior to the trachea
Covers the glottis during swallowing of food
Contains the vocal cords
Nerve that activates the diaphragm during inspiration
Pleural layer lining the walls of the thorax
Site from which oxygen enters the pulmonary blood
Connects the middle ear to the nasopharynx
opening of pharyngotympanic tube
Opening between the vocal folds
Increases air turbulence in the nasal cavity
Separates the oral cavity from the nasal cavity
Trace a molecule of oxygen from the external nares to the pulmonary capillaries of the lungs.
External nares --> nasal cavity --> pharynx --> larynx --> trachea --> primary bronchus --> secondary/tertiary bronchi --> bronchiole --> respiratory bronchiole --> alveolar duct --> alveolar sac across the alveolar/capillary walls --> Pulmonary capillaries
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