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Anonymous users2024-02-12The left lower abdomen of a man has part of the ileal descending colon, sigmoid colon, and rectum. The right lower quadrant has part of the ileum and ileocecal (i.e., appendix). Mainly these components of the lower gastrointestinal tract. There are other ancillary tissues, such as peritoneal lymph and blood vessels.
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Anonymous users2024-02-11In front of the thorax cage, acting on the arms. The arm can be adducted and supinated, and the trunk can be lifted when the upper limb is fixed.
2 Serratus anterior.
Assists in arm lifting.
3 Intercostal muscles.
These include the internal and external intercostal muscles. Contractions of the internal intercostal muscles can be exhaled, and contractions of the external intercostal muscles can be inhaled.
4) Diaphragm. It is located between the chest and abdomen. Includes the surrounding diaphragm and the central tendon.
The diaphragm contracts and the chest expands, causing inhalation, and the diaphragm relaxes and the chest shrinks to help exhale. There are three hiatus in the diaphragm, namely the esophageal hiatus, the aortic hiatus, and the vena cava foramen, through which the esophagus, aorta, and inferior vena cava pass respectively.
Diaphragm. The diaphragm is upward like a vault, separating the abdomen and thorax up and down.
The central tendon of the peripheral diaphragm leads up and down the three hiatus.
Contraction decreases, active inhalation, diastolic, and exhalation rises.
5) Abdominal muscles include the rectus abdominis muscle of the anterior abdominal wall and the external oblique muscle, internal oblique muscle, transverse abdominis muscle, etc.
1 rectus abdominis.
On both sides of the midline, the longus muscle is broad at the top and narrow at the bottom.
2 External oblique muscle.
Anterolateral abdominal wall flattenus, with fascicles oblique from lateral inferior to medial (similar to hand pockets).
3 Internal oblique muscles.
The external oblique muscle is deep, and the fascicles fan from the outside to the inside.
4 Transverse abdominis muscles.
The internal oblique muscle is deep, and the fascicles are horizontal.
5 Local structures of the abdomen.
Inguinal canal: located above the medial half of the inguinal ligament, it is an oblique fissure between the muscle and fascia, about 4 5 cm long, with four walls and two mouths.
1) Four walls: The anterior wall, which is mainly composed of the aponeurosis of the external oblique muscle. The posterior wall, consisting of the transverse fascia. The upper wall is composed of the internal oblique muscle, the lower arcuate border of the transverse abdominis muscle, and the symphysis tendon. The inferior wall, which is made up of inguinal ligaments.
2) Two mouths: The inner orifice, called the deep ring of the inguinal canal, is also called the ventral ring. The external orifice, called the superficial ring of the inguinal canal, is also called the subcutaneous ring.
3) By structure: male, with a spermatic cord. Female, with uterine round ligament.
6 Psoas quadratus: located in the posterior abdominal wall.
The role of the main muscles of the trunk muscles.
The trapezius muscles, shoulder against the latissimus dorsi, can relay.
The pectoralis major muscle, which can lift the serratus anterior muscle, and help the arm lift.
Intercostal muscles, respiratory pneumo, anterior abdominal wall, rectus abdominis muscle.
Lateral wall, flatus triplanus oblique laterally, transverse innermost.
vi) Perineal muscles.
It is the muscle that closes the small pelvic ostium, mainly including levator ani muscle, deep transverse perineum muscle and urethral sphincter.
Pelvic diaphragm: Composed of levator ani muscles together with their upper and lower fascia, it seals the posterior part of the lower pelvic orifice.
Urogenital diaphragm: composed of the deep transverse perineum muscle and urethral sphincter and its superior and inferior fascia, which closes the anterior part of the inferior pelvic orifice.
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Anonymous users2024-02-10The abdomen can be divided into four parts. It is also called the four-zone method: with the umbilicus as the center, the abdomen is divided into four areas, namely the right upper abdomen, the right lower abdomen, the left upper abdomen and the left lower abdomen.
If you're asking what organ is inside the left lower abdomen?
In men: left ureters in the posterior abdominal wall, part of the bladder, descending colon and sigmoid colon in the large intestine, and part of the jejunum and ileum in the small intestine.
In women: the posterior abdominal wall has the ureters on the left side, part of the bladder, the ovaries and fallopian tubes on the left side, part of the uterus, the descending colon and sigmoid colon in the large intestine, and the jejunum and ileum in the small intestine.
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Anonymous users2024-02-09If there is pain in the left lower abdomen, it is more common in colitis, ovarian cysts, adnexitis, etc., and can also be accompanied by symptoms such as abdominal distention, constipation, and increased vaginal discharge, which affects normal life.
If you are asymptomatic, you can live a normal life, and if there is a disease, you need to use drugs as soon as possible**, which has a certain effect.
The anterior wall of the fetus is good, and these do not have any effect on the time of delivery, so there is no need to worry.
The anterior wall of the fetus belongs to the normal phenomenon of pregnancy, the anterior wall pregnancy is easy to show pregnancy, and the belly will be seen in the later stage, but it does not affect the growth of the baby.
1. Maintain the shape of the cell, control the cell growth The cell wall increases the mechanical strength of the cell, and bears the turgoring pressure of the internal protoplasts due to the water absorption of vacuoles, so that the cell has a certain shape, which not only protects the protoplast, but also maintains the inherent morphology of organs and plants. In addition, the wall controls the growth of the cell because the premise for the cell to expand and elongate is for the cell wall to relax and irreversibly stretch. >>>More
It is impossible to break the wall by yourself, and it is higher than the cost of buying ready-made. >>>More
Fishing can generally be divided into traditional fishing and table fishing, traditional fishing is lead to the bottom but active, Taiwan fishing is fixed lead but is suspended, the hook is generally two high and one low distance of 2 to 3 cm, when adjusting can be adjusted to a bottom and a hanging, a bottom and a drag, the drift can be adjusted to the spirit of fishing blunt or blunt fishing spirit, these are determined according to the situation at the time, you said the difference between the lead and the hook is the difference between the spirit and the blunt, in fact, fishing is a healthy sport is also a very deep knowledge, You'll learn it later in practice.