Malignant prostate tumor is a common cancer in older men
affecting the prostate gland. Moreover, it can cause urinary symptoms
and spread to other organs. Diagnosis includes PSA testing and biopsy,
while treatment ranges from active surveillance to surgery and advanced
therapies.
Mammary physiology describes how the mammary gland produces and releases milk through hormonal regulation, supporting breastfeeding and infant nutrition.
Melanoma on the back is a skin cancer arising from melanocytes,
characterized by irregularly pigmented lesions. Moreover, it may show
changes in size, shape, and color, reflecting malignant skin alterations.
Melanoma stages describe the progression of skin cancer from
localized lesions to advanced phases with lymph node involvement and
metastasis. Moreover, they help assess tumor extent and structural
changes in skin and organs.
Metastatic melanoma is an advanced stage of skin cancer
where malignant cells spread to distant organs. Moreover, it
involves systemic progression, organ involvement, and significant
structural and functional alterations.
The mitral valve regulates blood flow between the left
atrium and the left ventricle. Its opening and closing during
the cardiac cycle ensure one-way blood circulation through
the heart.
The myelin sheath is a protective layer that surrounds
the axons of neurons. First, its primary function is to
facilitate the rapid transmission of nerve impulses.
Myopia is an eye condition in which nearby objects are seen clearly,
but distant ones appear blurred. This happens because the image
forms in front of the retina, usually due to a longer eyeball or a more
curved cornea.
The myotatic reflexes illustrate the neuromuscular
mechanism that enables involuntary muscle contraction
in response to stretching. First, this reflex is essential
for maintaining muscle tone and posture.
Neuromuscular junction of myasthenia defines the
communicative failure between nerves and muscles due to
autoimmune causes. Antibodies block acetylcholine receptors,
leading to severe fatigue and a very weakened muscular
response.
The neuron is the fundamental cell of the nervous
system. It consists of a soma, dendrites, and an axon.
In addition, each component performs specific
functions for signal transmission.
Oblique and open fractures are bone injuries with different
severities. Oblique fractures show a diagonal break, while open
fractures expose bone to the environment. Moreover, both require
prompt treatment to prevent complications.