Reproduction and Heart Lab Worksheets

Once sperm are made where in the testes are they stored?

Epididymis

Trace the route of movement of sperm from the testes to the urethra orifice:

Seminiferous tubules
→ Rete testis
→ Efferent ductules
→ Epididymis
→ Vas deferens (ductus deferens)
→ Ejaculatory duct
→ Prostatic urethra
→ Membranous urethra
→ Spongy (penile) urethra
→ Urethral orifice

Which erectile tissue surrounds the male urethra?

Corpus spongiosum

Which erectile tissue of the penis has 2 bundles?

Corpus cavernosum

The glans penis is continuous with which erectile tissue?

Corpus spongiosum

In an uncircumcised male, what covers the glans penis?

Prepuce (foreskin)

Physicians often do a digital rectal exam (insert gloved finger to palpate prostate) to test for prostate enlargement. Look to see how this works.

The prostate is located just in front of the rectum, allowing it to be felt through the rectal wall.

Trace the route of sperm in the testes from seminiferous tubule to epididymis:

Seminiferous tubules
→ Rete testis
→ Efferent ductules
→ Epididymis

Sperm from the right and left testes come together in what structure?

Prostatic urethra (after both vas deferens empty into the ejaculatory ducts which merge into the urethra in the prostate)

What structure attaches the uterus to the ovary?

Ovarian ligament

Why do pregnant women feel they have to empty their bladders frequently?

Because the enlarged uterus presses against the bladder, reducing its capacity and increasing the urge to urinate.

How many openings are there in the uterus? What are they?

Three openings:

• Two uterine (fallopian) tube openings (one on each side)
• One cervical opening into the vagina

Trace the route of sperm travel from the vagina to the fimbriae:

Vagina
→ Cervix
→ Uterus
→ Uterine (fallopian) tube
→ Fimbriae

Look up the contraceptive device called a diaphragm. When the diaphragm is in place it would be surrounding what specific structure?

Cervix

Find the corpus luteum on the ovary model. Look up the terms “corpus” and “luteum” to find out what the Latin names mean:

"Corpus" = body; "Luteum" = yellow
→ "Corpus luteum" means "yellow body"

What part of the clitoris is visible from the external view?

Glans of the clitoris

What part of the clitoris is made of corpus spongiosum?

The vestibular bulbs (somewhat homologous, although not part of the clitoris itself)
→ Note: The clitoris is primarily made of corpus cavernosum, not spongiosum.

Which part of the clitoris is made of corpus cavernosa?

The body (shaft) and crura of the clitoris

Define artery

A blood vessel that carries blood away from the heart.

Define vein

A blood vessel that carries blood towards the heart.

Most arteries carry _ blood while most veins carry _ blood. The exceptions to this rule are ____

Most arteries carry oxygenated blood while most veins carry deoxygenated blood. The exceptions to this rule are the pulmonary arteries (carry deoxygenated blood) and pulmonary veins (carry oxygenated blood).

Most arteries are colored _ in illustrations & models while most veins are colored _

Most arteries are colored red in illustrations & models while most veins are colored blue.

Name all openings that bring blood into the right atrium. How many holes do you see?

The openings that bring blood into the right atrium are:

• Superior Vena Cava
• Inferior Vena Cava
• Coronary Sinus

There are three main openings.

What structure separates the right ventricle from the left ventricle?

Interventricular septum

Which coronary artery would provide blood to the: Anterior surface of the left ventricle

Anterior interventricular artery (also known as the Left Anterior Descending or LAD artery)

Which coronary artery would provide blood to the: Lateral surface of the left ventricle

Circumflex artery (specifically, its obtuse marginal branches)

Which coronary artery would provide blood to the: Right ventricle

Right coronary artery (RCA)

Blood returning from the coronary circulation enters what chamber?

Right atrium (via the coronary sinus)

How many openings are there in the left atrium for blood to flow in and out? Name them.

Four pulmonary veins into the left atrium (2 from each lung),and the left atrioventricular (mitral) valve out the left atrium.