quarta-feira, 24 de maio de 2017

Muscle tissue

Muscle tissue cells are called muscle fibers and have the ability to contract and stretch allowing various body movements.
Muscle tissue can be of three types:
Smooth: involuntary and not fluted, it can be found on the walls of internal organs
Skeletal striatum: Voluntary, striatum attaches to bones
Striated cardiac: Involuntary striated, is found in the heart.


MCCRACKEN, Thomas, Atlas do Corpo Humano “sistema muscular’’, 1999.

The Male Reproductive system


The Male Reproductive system consists of:
Testicles: They are the sperm producing organs, and that from puberty, also produce a hormone, testosterone, responsible for the appearance of secondary sexual characters.
Epididymis: There spermatozoa are stored until the time of ejaculation.
Deferent Duct: it is the continuation of the tail of the epididymis. Originates from the sperm reservoir and leads them to the ejaculatory duct.
Ejaculatory Duode: Of the conductive spermatozoa, is the one of smaller size and smaller caliber. It comes out in the prostatic part of the urethra, next to a protrusion called the seminal colliculus.
Urethra: It is a common channel for urination and ejaculation.
Prostate: This is where the prostatic secretion joins the secretion of the seminal vesicles to constitute the volume of the seminal fluid.
Penis: Male copulation organ, in addition to serving as channel for ejaculation, it is through this organ that the urine is also expelled.


Reference: DANGELO, JG; FATTINI, CA. Anatomia Humana.Atheneu.3ª edição.P.12-183\2011