Diagram of Penis

The diagram of penis shows many vital structures that work together to support its overall function. The penis diagram shows that it comprises blood vessels, nerves, erectile tissues, and supporting components. The corpora cavernosa and corpus spongiosum are two cylindrical structures that make up the erectile tissues, which are crucial to penile function.

The labeled diagram of penis is given below:

Diagram of Penis

What is Penis?

The penis is the principal external sexual organ in males. It is essential for both sexual activity and reproduction. The penis becomes erect during sexual stimulation due to blood filling the erectile tissues, which permits sperm deposition and penetration during intercourse.

In addition, the penis has sensory nerves that contribute to arousal and sexual pleasure, and it is involved in the excretion of urine through the urethra, which runs down its length. All things considered, the penis is an essential physiological and anatomical element of male reproductive system and sexual health.

Anatomy of Penis

The diagram of penis shows its anatomy as discuss below:

External Anatomy of Penis

Penile shaft

• The longer, cylindrical section of the penis is called the penile shaft.
• Three cylindrical structures known as erectile tissue make up the majority of it: one corpus spongiosum on the underneath, two corpora cavernosa on the upper side.

Glans penis

• The glans penis is the rounded tip of the penis, and because of its strong nerve supply, it is frequently more sensitive to touch than other sections.
• In uncircumcised males, it is shielded by a skin covering known as the foreskin.

Foreskin

• In uncircumcised males, the glans penis is covered by the retractable flap of skin known as the foreskin. In addition to providing protection for the vulnerable glans, it could enhance sex.
• The foreskin may retract to reveal the glans during sexual desire or when the penis is flaccid.

Urethral opening

• Urine and semen release the body through the urethral hole, which is situated near the tip of the glans penis.
• Urine is released from the bladder through the urethra and exits the body through the urethral aperture during urinating.
• The same aperture is used to discharge semen during ejaculation, which permits sperm to deposit into the female reproductive system during sexual activity.

Internal Anatomy of Penis

Corpora Cavernosa

• On the top side of the penis are two extended cylinders of erectile tissue that are known as the corpora cavernosa. These structures mostly cause the penis’s rigidity during an erection.
• An erect penis is the consequence of the corpora cavernosa expanding and becoming engorged with blood during sexual stimulation.

Corpus Spongiosum

• The corpus spongiosum is a solitary, cylindrical structure situated on the penis’ underside. The urethra, the channel that semen and urine travel through is located there.
• Moreover, during an erection, the corpus spongiosum swells with blood, maintaining the urethra’s opening for ejaculation.

Erectile Tissue

• The corpora cavernosa and corpus spongiosum, which make up erection tissue, are necessary for obtaining and sustaining erections.
• The smooth muscles in the erectile tissue relax as the brain sends signals to the penis’s nerves, causing the release of neurotransmitters during sexual excitement.
• An erection is the consequence of blood filling the cavernous spaces in the erectile tissue due to this relaxation.
• The veins are compressed by the erectile tissue’s enlargement, which lowers blood flow and maintains the erection over the duration of sexual activity.

Blood Supply

• The internal pudendal artery branches that send oxygen-rich blood to the erectile tissue supply blood to the penis.
• During an erection, arterial blood enters the penis by many branches and fills the cavernous regions of the corpora cavernosa and corpus spongiosum.

Nerve Innervation

• Sexual arousal and function are significantly influenced by the penis’s nerve innervation.
• The brain receives sensory data from the penis through branches of the pudendal nerve, which innervate the penis and enable the experience of sexual stimulation and pleasure.

Conclusion – Diagram of Penis

In summary, the penis diagram shows internal and exterior components that is essential to sexual activity, urination, and reproduction. Its anatomy is important to know in order to diagnose and treat a variety of sexual and urological health issues. The erectile tissues, blood supply, nerve innervation, and urethral opening are only a few of the internal and exterior elements of the penis. The diagram of penis helps in understanding the male reproductive system.

FAQs – Diagram of Penis

What is the Tip of Penis Called?

The tip of the penis is called the glans penis.

What is the Opening of the Penis Called?

The opening of the penis is called the urethral meatus.

Why is Penis Important?

The penis is important for reproduction, urination, and sexual function in males.

Which Area in Pennis is Sensitive?

The glans penis, particularly the frenulum and ridged band, is highly sensitive to touch and sexual stimulation.

What are the Nerves Present in Penis?

The penis is innervated by branches of the pudendal nerve, dorsal nerve of the penis, and autonomic nerves, which regulate sensation, erection, and ejaculation.