Blood vessels

Bài viết trình bày các vạt da cân cuống ngoại vi vùng cẳng chân với nền tảng máu nuôi là các mạch xuyên (perforators), mạch máu vách da (septocunanous blood vessels) với lưới mao mạch phong phú trên cân là một trong các lựa chọn tốt cho các che phủ tổn thương khuyết hổng nhỏ và trung bình vùng cẳng chân nói chung và đặc biệt vùng 1/3 dưới cẳng chân và cổ chân nói riêng.

5p vipanly 26-11-2024 2 0   Download

Blunt chest trauma is a life-threatening emergency that has a variety of injuries, from chest wall contusions and rib fractures to lung and pleural injuries, from trachea and esophagus to heart and large vessels trauma, of which hemothorax is a common complication of blunt chest trauma. Diagnosis is based on signs and symptoms, including blood loss, pleural effusion syndrome, and imaging findings.

8p vinara 11-01-2025 2 1   Download

Systemic lupus erythematosus (SLE) is characterized by the production of autoantibodies and dysregulation of cytokines. This study aimed to describe the results of anti-nuclear antibodies (ANA) and antibodies against double-stranded DNA (anti-dsDNA) tests in patients with SLE and to investigate the association between anti-dsDNA and ANA.

7p vihatake 06-01-2025 6 2   Download

Understanding mechanical properties of healthy and unhealthy cerebral vessels is a key element in the development of their science and the relevant clinical diagnosis, prevention and treatment. Thirteen healthy samples were obtained from 23 middle cerebral arteries. The changes of force and deformation until the vessel rupture were recorded using a biaxial device.

14p tohitohi 19-05-2020 14 0   Download

Leukocytes constantly patrol the vascular system in order to react promptly to infections when and where it is necessary. To fulfil this task, the cells have to enter secondary lymphoid organs and to emigrate into inflamed tissues, which requires them to cross the bar-rier of endothelial cells that line blood vessels.

2p inspiron33 25-03-2013 53 4   Download

Basement membranes are sheets of extracellular matrix that separate epi-thelia from connective tissues and outline muscle fibers and the endothelial lining of blood vessels. A major function of basement membranes is to establish and maintain stable tissue borders, exemplified by frequent vascu-lar breaks and a disrupted pial and retinal surface in mice with mutations or deletions of basement membrane proteins.

12p galaxyss3 19-03-2013 35 3   Download

Interactions between astrocytes and blood vessels are essential for the for-mation and maintenance of the blood–neural barrier (BNB). Astrocyte-derived A-kinase anchor protein 12 (AKAP12) influences BNB formation, but the mechanism of regulation of BNB functions by AKAP12 is not fully understood.

16p media19 06-03-2013 46 3   Download

Formation of new blood vessels is required for the growth and metastasis of all solid tumors. New blood vessels are established in tumors mainly through angiogenesis. Brain tumors in particular are highly angiogenic. Therefore, interventions designed to prevent angiogenesis may be effective at controlling brain tumors.

12p vinaphone15 25-02-2013 50 3   Download

The vascular network of the brain is formed by the invasion of vascular sprouts from the pia mater toward the ventricles. Following angiogenesis of the primary vascular network, brain vessels experience a maturation pro-cess known as barriergenesis, in which the blood–brain barrier is formed.

14p vinaphone15 25-02-2013 35 3   Download

Platelet adhesion and aggregation at the site of vascular injury is essential for hemostasis, but can also lead to arterial occlusion in thrombotic disor-ders. Glycoprotein (GP) VI is the major platelet membrane receptor that interacts directly with collagen, the most thrombogenic compound in the blood vessels.

16p vinaphone15 25-02-2013 32 3   Download

Atrial natriuretic peptide (ANP) and the homologous B-type natriuretic peptide are cardiac hormones that dilate blood vessels and stimulate natri-uresis and diuresis, thereby lowering blood pressure and blood volume. ANP and B-type natriuretic peptide counterbalance the actions of the renin–angiotensin–aldosterone and neurohormonal systems, and play a cen-tral role in cardiovascular regulation.

12p cosis54 05-01-2013 36 4   Download

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú yđề tài: A new resorbable device for ligation of blood vessels - A pilot study...

7p coxanh_1 22-10-2011 63 4   Download

Thoracic outlet syndrome is a combination of pain in the neck and shoulder, numbness and tingling of the fingers, and a weak grip. The thoracic outlet is the area between the rib cage and collar bone. Causes Blood vessels and nerves coming from the spine or major blood vessels of the body pass through a narrow space near the shoulder and collarbone on their way to the arms. As they pass by or through the collarbone (clavicle) and upper ribs, they may not have enough space.

5p truongthiuyen2 10-06-2011 63 4   Download

Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers. This is traditionally done by injecting a radio-opaque contrast agent into the blood vessel and imaging using X-ray based techniques such as fluoroscopy. So angiography consists of MRI, CT-Scan. . .

5p truongthiuyen2 09-06-2011 62 4   Download

Neurogenic shock is shock caused by the sudden loss of the autonomic nervous system signals to the smooth muscle in vessel walls. This can result from severe central nervous system (brain and spinal cord) damage. With the sudden loss of background sympathetic stimulation, the vessels suddenly relax resulting in a sudden decrease in peripheral vascular resistance (vasodilatation) and decreased blood pressure.

4p truongthiuyen1 09-06-2011 69 3   Download

Mononeuritis multiplex involves damage to at least 2 separate nerve areas. This condition can become progressively worse over time. The damage to the nerves involves destruction of the axon (ie, the part of the nerve cell that is analogous to the copper part of a wire), thus interfering with nerve conduction. Common causes of damage include a lack of oxygen from decreased blood flow or inflammation of blood vessels. Approximately 33% of cases originate from unidentifiable causes.

5p truongthiuyen1 09-06-2011 55 4   Download

Understanding human anatomy will help you achieve greater expressive ability in figure drawing. By understanding the many different aspects of the human form, you can better grasp how the figure works as a whole. For example, if you feel along the bone on the lower part of your jaw, you will notice that there is a small indentation about halfway between the chin and the back of the jaw. This indentation is to allow a blood vessel to pass under the jaw. The indentation helps to protect the vessel. The significance of this little indentation is that it affects the...

18p audi123 31-07-2010 203 51   Download