ZOO 3733L - Gross Anatomy Lab I

Dissections of June 10 - 13 and June 17 - 19, 2002

N.B.		In each dissection some names appear in parentheses. These are structures that may not readily be found during your dissection, i.e., look for them but do not spend too much time on them so that you have time to comlete the laboratory. Many of these structures will be exposed more completely in future dissections or are best observed in your atlas. Also, there will be important structures listed that are not found in your dissector (Hansen, 1998); information about these items can be found in your text (Jenkins, 1998; Moore & Agur, 2002; Stern, 1997).

VII. POSTERIOR ABDOMINAL STRUCTURES (Ch. 2, pp. 39-42)

Dissection notes

If your cadaver's viscera have not been removed, this dissection will require freeing parts of the large intestine from its mesentery and possibly reflecting the lower bowel. Your instructors will assist you with this.
Students will also be responsible for the structures shown on the Kidney, Nephron and Corpuscle Model (Samso Model LS-9).

angiology
	abdominal aorta
		gonadal a (testicular or ovarian)
		renal a
		(lumbar aa)
		median sacral a
		common iliac a
			external iliac a
			internal iliac a
	external iliac v
	internal iliac v
	common iliac v
	inferior vena cava
		gonadal v (testicular or ovarian; note asymmetry)
		renal v

splanchnology
	kidneys
		hilum
		renal cortex
			renal columns
		renal medulla
			renal pyramids
			papillae
		major calyces
		minor calyces
		renal pelvis
		ureter
	suprarenal glands
		(cortex)
		(medulla)

OSTEOLOGY OF THE PELVIC GIRDLE

Find the following structures using your atlas and text (Moore & Agur pp. 145-151) as a guide. The structures pertaining to the sacrum are the same which were studied earlier.

Os coxa - be able to distinguish between a right and left os coxa
	ilium
		ala
		body
		iliac crest
			iliac tubercle
		anterior superior iliac spine
		anterior inferior iliac spine
		gluteal lines:  anterior, inferior, posterior
		posterior superior iliac spine
		posterior inferior iliac spine
		greater sciatic notch
		iliac fossa
		arcuate line 
		auricular (sacroiliac joint) surface
		iliac tuberosity
		iliopubic eminence
	pubis
		body 
		superior pubic ramus
		inferior pubic ramus
		pubic crest
		pubic tubercle
		pectin pubis (pectineal line)
		pubic symphysis
		obturator groove
	ischium
		body
		ramus
		ischial spine
		lesser sciatic notch
		ischial tuberosity
	acetabulum
		lunate surface
		margin (lip/limbus)
		notch
	obturator foramen
	linea terminalis (pelvic brim)

Sacrum
	Lumbosacral Articular Surface
	Auricular Surface (Sacroiliac facet)
	Promontory
	Ala (wing)
	Sacral Part of Pelvic Brim
	Anterior Sacral Foramina
	Transverse Ridges (4)
	Sup. Articular Processes and Facets
	Lateral Sacral Crest
	Median Sacral Crest (with spinous processes)
	Posterior Sacral Foramina
	Sacral Canal
	Sacral Hiatus
	Sacral Cornua

PERINEUM (Ch. 3)

N.B. The structures of the perineum listed below are grouped by gender, and items common to both are repeated. The labs examining the perineum will involve minimal dissection of the cadavera. Thus, use your dissector simply as a guide to identify the structures listed below. Several models are provided and the structures are keyed to these models. The models are keyed as follows: FB - female bladder; FG - female genitalia, FP - female pelvis;. MB - male bladder; MG - male genitalia, SM - sagittal male; SF - sagittal female; and UM - urinary system model . Structures keyed as C and HC can be found on the intact (C) and the hemi-sected cadavera (HC), respectively.
To facilitate your studying, you may wish to rearrange the following lists by study speciemen, i.e., male bladder model, female pelvis model, cadaver, hemi-sected cadaver, etc.

N.B.		The structures of the perineum listed below are grouped by gender, and items common to both are repeated. The labs examining the perineum will involve minimal dissection of the cadavera. Thus, use your dissector simply as a guide to identify the structures listed below. Several models are provided and the structures are keyed to these models. The models are keyed as follows: FB - female bladder; FG - female genitalia, FP - female pelvis;. MB - male bladder; MG - male genitalia, SM - sagittal male; SF - sagittal female; and UM - urinary system model . Structures keyed as C and HC can be found on the intact (C) and the hemi-sected cadavera (HC), respectively.
		To facilitate your studying, you may wish to rearrange the following lists by study speciemen, i.e., male bladder model, female pelvis model, cadaver, hemi-sected cadaver, etc.

Male Perineum

landmarks / regions
	pubic symphysis - HC, MG, SM
	coccyx - HC, SM
	sacrotuberous ligament - atlas; reconstruct it on FP
	sacrospinous ligament - atlas; reconstruct it on FP
	perineum - FP
		urogenital triangle FP
		anal triangle - FP
	rectovesical pouch - C, HC, SM

myology
	ischiocavernosus - MG
	bulbospongiosus - HC, MG, SM 
	superficial transverse perineal - MG
	sphincter urethrae (= "urogenital diaphragm") - FP, HC, MG, SM 
	pelvic diaphragm (= "levator ani") - FP, MG
	external anal sphincter - HC, MG, SM
	obturator internus - FP, MG

penis
	external morphology - examine on the cadavera
		prepuce - C, HC, MG
		glans - C, HC, MG, SM
		corona - C, HC, MG, SM
		frenulum - C, MG
	root
		bulb - HC, MG, SM
		crura - atlas
	suspensory ligament - MG, SM
	corpus spongiosum - C, HC, MG, SM
	corpora cavernosa - C, HC, MG, SM

splanchnology
	rectum - C, HC, MG, SM
	anus - HC, MG, SM
		anal columns (of Morgangi) - HC, SM
		anal valves - HC, SM
	ureter - C, HC, MB, MG, UM, SM
	bladder - C, HC, MB, MG, UM, SM 
		trigone - HC, MB, MG, UM, SM 
	seminal vesicles - HC, MB, MG, UM, SM 
	ductus deferens - C, HC, MB, MG, UM, SM 
		ampulla - HC, MB, MG, UM, SM 
	prostate - HC, MB, MG, UM, SM 
		prostatic urethra - HC, MB, MG, SM
			seminal colliculus - MB, MG, SM, UM
			prostatic utricle - MB, MG, SM, UM
			openings of ejaculatory ducts - MB, UM
	urethra - HC, MB, MG, SM, UM 
		prostatic urethra - HC, MB, MG, SM, UM
		membranous urethra - HC, MG, SM
		spongy urethra - HC, MG, SM 

Female Perineum

landmarks/ regions
	pubic symphysis - FG, HC, SF
	coccyx - HC, SF 
	sacrotuberous ligament - atlas; reconstruct on FP
	sacrospinous ligament - atlas; reconstruct on FP
	perineum - FP
		urogenital triangle - FP
		anal triangle - FP
	vesicouterine fossa - C, FG, HC, SF
	rectouterine space (pouch) - C, FG, HC, SF 

myology
	ischiocavernosus - FG, FP
	bulbospongiosus - FG, FP
	superficial transverse perineal - FG, FP
	sphincter urethrae (= "urogenital diaphragm") - FG, FP, HC, SF
	pelvic diaphragm (= "levator ani") - FG, FP
	external anal sphincter - FG, HC, SF
	internal anal sphincer - FG, HC, SF
	obturator internus - FG, FP

vulva 
	external morphology - examine on cadavera and models
		mons pubis - C, HC, SF
		labia majora - C, FG, HC, SF
		labia minora - C, FG, HC, SF
		vestibule - C, FG, HC, SF
		urethra - C, FG, HC, SF
		vagina - C, FG, HC, SF
		glans of clitoris - C, FG, HC, SF

splanchnology
	peritoneum
		broad ligament - C
			mesosalpinx -C
			mesovarium -C
		suspensory ligament of ovary - C, FB, SF
	rectum - C, FG, HC, SF
	anus - C, FG, HC, SF 
		anal columns (of Morgagni) - HC, SF
		anal valves - HC, SF
	ureter - C, FG, HC, FB, SF
	bladder - C, FG, HC, FB, SF 
		trigone - FB, FG, HC, UM
	urethra - FB, FG, HC, SF
	ovary - C, FB, FG, C, SF
		ligament of the ovary - C, FB, FG, SF
		round ligament of the uterus- C, FG, SF
	uterus - C, HC, FB, FG, SF 
		body - FG, HC, SF
			endometrium -  FB, FG, HC. SF
			myometrium - FB, FG, HC, SF
		cervix -  FB, FG, HC, SF
		uterine tube - C, FB, FG, SF
			fimbriae - C, FB, FG, SF
	vagina - FB, FG, HC, SF
		anterior fornix - FB, FG, HC, SF
		posterior fornix - FB, FG, HC, SF

Return to FIU Anatomy Home Page