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229404When hemoglobin loses the function of transporting oxygen and carbon dioxide due to poisoning, tissue cells will suffer from anoxia and acidosis.

229405When female animals are pregnant later, they often show abdominal breathing.

229406The main result of tissue ventilation is the change of gas composition in the cytoplasm of tissue, that is, oxygen is supplied to the cytoplasm and carbon dioxide is discharged.

229407Horse’s trachea is divided into right apical lobe bronchus and left and right bronchus.

229408The pulmonary lobule is a relatively independent lung structure which is composed of a finer stage by stage bronchi and its alveolar ducts, alveoli sacs and alveoli.

229409The respiratory rate of cattle is 50-80 times min.

229410The negative pressure in the chest is good for the stomach content to retch to the mouth when ruminant.

229411The frontal sinuses of cattle are larger and the same as the antrum of the horn process.

229412The nasal cavity is divided into two parts: vestibule and inherent nasal cavity.

229413The lungs of cattle, sheep and horses can be divided into seven leaves, while the lungs of pigs can only be divided into five leaves.

229414The posterior end of the inferior meatus passes through the posterior nostril through the larynx.

229415The nasal vestibule has upper turbinate, middle turbinate and lower turbinate, which are divided into several nasal passages.

229416Respiratory frequency can be changed by individual physiological condition, external environment, disease and other factors.

229417Paranasal sinuses can reduce the weight of skull, warm and moist air and resonate with pronunciation

229418The power of gas exchange is gas differential pressure.

229419Bronchoalveolar sounds can be heard in the lungs of healthy animals.

229420Diaphragmatic activity was the main mode of abdominal breathing.

229421When pneumothorax occurs, even if chest movement is still taking place, but because the lung itself collapses due to elastic retraction, it cannot expand and shrink with it, so pulmonary ventilation will not continue to occur.

229422Intrathoracic negative pressure is developed after birth.

229423The basic reason that the lung can expand with the chest is the negative pressure in the chest.

229424When the external air pressure is relatively lower than the internal pressure, the air flows into the alveoli through the respiratory tract.

229425Lung ventilation depends on respiratory movement.

229426The left and right pleural cavities of cattle and sheep are generally interlinked.

229427There is a large amount of serous in the pleural cavity, which plays a lubricating role.

229428The thorax is a truncated conical body cavity with the thorax as the frame and attached to the chest wall muscle and skin. The cavity can be enlarged and reduced with the help of pectoralis muscle group.

229429he main function of the channels from the intrapulmonary bronchus to the terminal bronchioles is to ensure and control pulmonary ventilation, and to have gas exchange function.

229430The alveoli are polyhedral spheres with a gap on one side, which are connected with alveoli sac and alveoli duct.

229431The alveoli are directly connected to the respiratory bronchioles.

229432The bronchioles and walls are supported by cartilage.

229433As the bronchi gradually become smaller, the walls of the tubes become thinner, and the glands gradually decrease or disappear.

229434The left pulmonary heart notch is often used as the auscultation site in veterinary clinic.

229435The heart lobe and septum lobe of horse lung are divided into five parts.

229436The projection of the posterior edge of the lung on the body surface is a forward downward arc, from the fourth rib space to the lower end of the 10th rib.

229437The diaphragmatic surface of the lung is on the outside, slightly convex, contacting with the lateral wall of the thorax, with costal impression.

229438The left lung is usually larger than the right.

229439Tracheal epithelium is a pseudostratified columnar ciliated epithelium with goblet cells.

229440The trachea is located at the back of the cervical and thoracic vertebrae

229441Laryngeal mucosa is rich in sensory nerve endings, which will cause cough and foreign body coughing.

229442Laryngeal muscles attached to the outside of the laryngeal cartilage can change the shape of the larynx.

229443Laryngeal cartilage is the scaffold of larynx, which consists of 4 kinds and 6 pieces of cartilage.

229444The basic center of respiratory rhythm is located in（）.

229445Which of the following is the order of pCO2 from low to high?

229446What is the correct description of the physiological function of pulmonary surfactant?

229447What is the correct description of intrapleural pressure?

229448What’s wrong with the account of calm breathing?

229449Which of the following structures has no gas exchange function?

229450Which of the following is not in the mediastinum?

229451Which of the following is a pair of laryngeal cartilage?

229452The left lung of cattle is divided into （） lobes.

229453The affinity of C0 to hemoglobin is（）times that of O2 to hemoglobin.

229454What is the most important factor to determine the direction of pulmonary gas exchange?

229455In which of the following cases is the intrapulmonary pressure lower than atmospheric pressure when breathing quietly

229456What is the core of the whole breathing process?

229457The walls of the alveoli are very thin. There is only （） cells with cubic secretory cells.

229458When the diameter of bronchus is less than （） mm, it is called bronchiole.

229459Pig lung can be divided into（） leaves.

229460The left and right lungs have three margins: dorsal, posterior and（）margins.

229461When is the intrapulmonary pressure equal to atmospheric pressure?

229462The trachea is cylindrical and is connected by a series of （） trachea cartilage rings.

229463The structure of the lung does not contain （）.

229464The salivary glands including paired parotid gland, submandibular gland and sublingual gland， saliva，and their catheter opens in the mouth.

229465The is the end of the digestive tract. It consists of the skin, the muscularis, and the mucosa.

229466The mucosa consists of epithelium consists of cells, goblet cells, etc., covering the villus surface.

229467The mucosa consists of epithelium, lamina propria and muscularis. There are many digitationes on the surface of mucosa , called intestinal .

229468The ileum is short and straight. Ileocecal opening connected the to the cecum.

229469The muscular layer of the stomach is very strong and divided into three layers. The layer is oblique muscle distributing only in the non-glandular part, the strongest of which is in the cardia, forming the cardia sphincter.

229470Glandular portion of pig stomach is divided into cardiac gland region, pyloric gland region and gland region.

229471The mucosa of pig stomach glandular part containing glands, There are many depressions formed on the surface, called the gastric pits which is the of gastric gland.

229472The stomach wall is divided into four layers: layer, submucosa layer, muscle layer and serosa layer.

229473The concave edge of the stomach is called the lesser curvature, the convex edge called the curvature.

229474The digestive system of pigs consists of the digestive tract and digestive .

229475The smooth muscle of digestive tract can form many kinds of movements, mainly including tense , peristalsis, segmental movement and swing.

229476The smooth muscle of digestive tract has rhythm.

229477The parenchyma is divided into part and endocrine part.

229478Many processes in the body need to be done in the liver. In addition, the liver also has many other functions, such as hematopoiesis, detoxification, excretion, defense and so on.

229479All animals except the family have gall bladder, which can store and concentrate bile.

229480Salivary glands are glands that secrete saliva, mainly includes pairs of gland, submandibular gland and sublingual gland.

229481The digestive glands are divided into and outer glands.

229482The intestine is different from the small intestine, no intestinal villi exist. There are intestinal glands, lymph nodes, etc.

229483The cecum is cylindrical and located in the iliac region.

229484The mucosa of small intestine forms many circular walls and small intestinal villi to increase the interface with .

229485The is short and straight. The boundary between the jejunum and the ileum is marked by the line between the flattened ends of the cecum.

229486The is very long and forms numerous intestinal loops, which are suspended on the right side of the peritoneal cavity by the jejunal mesentery

229487The small intestine includes three segments: the , the jejunum and the ileum.

229488The main function of the omasum is drying and food in the process of food digestion.

229489The reticulum contacts the diaphragm and the liver. The front of the diaphragm is adjacent to the and the lungs.

229490The rumen occupies the entire abdominal cavity.

229491The fourth stomach of sheep is also called stomach.

229492The fourth stomach of sheep has the function of digestion.

229493The first three stomachs of sheep mainly and decompose cellulose.

229494The first three stomachs of sheep are also called or pseudogaster.

229495The stomach of sheep includes the, the reticulum, the omasum and the abomasum.

229496The food enters the stomach for digestion.

229497The esophagus is a muscular channel that transports food from the pharynx to the .

229498The pharynx is located in the back of the oral cavity and the cavity, above the larynx and the esophagus.

229499The lips are covered with skin, its inner surface is lined with .

229500The mouth has the functions of ingestion, mastication, taste differentiation, and secretion of digestive juice.

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