Thoracic cavity

Review, identify, and describe anatomical plane terminology. Figure 1.2 Superior- Higher Inferior- Lower Distal- Further away from the midline Proximal- Closer to the midline Posterior (dorsal)- Back Anterior (ventral)- Front Medial- towards the mid line Lateral- Away from the midline The dog is inferior to the girl. The dog’s posterior is anterior to the girl. The dogs leash is superior to his collar. The girl left leg is distal to her right leg. Her left arm is distal from her body holding…

Respiration is a process, which conducts the circulation of air between the lungs and the external environment. Two main mechanisms involved in the respiration process is the act of inspiration and expiration. Inspiration involves the inhaling of oxygen into the lungs. Expiration involves the exhalation of carbon dioxide into the external environment. Respiration is important to human body because it is a major contributor to speech. As mentioned in the paragraph above, a variety of muscles…

lungs. During the process of inhalation the external intercostal muscles contract, therefore pulling the chest wall upwards and outwards, these intercostal muscles are between the ribs. As the air is drawn into the lungs, this causes for the thoracic cavity volume to increases, during inspiration the diaphragm also contracts, therefore moving the diaphragm downwards. There are three more muscles that contract during the process of inspiration these muscles include the pectoralis minor which…

Inspiration starts when chemoreceptors sense there is a high amount of CO2 in the blood, which then tells the body to contract the diaphragm and external intercostal muscles to contract, which increases the volume of the thoracic cavity. Due to this increase in volume of the thoracic cavity, and decrease in pressure, the air will wants to move to an area where there is less pressure, which is inside your…

It is important for medical professionals and doctors to use universal medical terminology for body positions, regions, cavities and planes, when finding and discussing decisions about your health. This is important to doctors and other professionals working in the medical field because it is their own language. Knowing terminology, locations, and planes are important for the doctors to tell surgeons and other doctors where the injury is located. Patient medical notes need to be legible, and…

As stated before I prefer the modified version of this method that removes the small and large intestines before the thoracic and other abdominal organs. Besides being easier to lift, there is less of a chance that the bowel will be perforated and the field flooded with feces. There are several areas where I still have difficulty, those include finding the ligament of…

Fetal Pig External Features Structure Location Colour Texture Function Image Anus Just under the tail and after the rectum Same colour as skin (light pink) Valve-like and scrunched up; feels and looks like a sphincter Valve-like muscle at lower end of rectum. The opening through which feces pass out of body Scrotal Sac In males, it is located just under the anus and bulges out from the skin Same colour as skin (light pink) Feels muscular/like skin Contains the testes Urogenital Opening…

The nasal cavity makes up the main external opening of the mammalian respiratory system. The nasal cavity is lined with a mucous membrane composed of stratified squamous epithelium tissue. As air gets into the nasal cavity, hairs filter out any impurities or sticks to the mucous membrane. The mucous membrane cells secrete almost 1 liter per day, which moistens the air that is inspired. This mucous membrane is affluent in blood vessels; they warm the air when it goes into the nasal cavity. • The…

The effect of different breathing patterns on alveolar gas compositions. Introduction Ventilation is the process where the exchange of oxygen (O2) from the air into the lungs and carbon dioxide (CO2) from the blood into the external environment (Silverthorn, 2013). Respiration is essential for all living organisms to survive. Breathing is part of physiological respiration and is required to sustain life. Our lungs are composed of small sacs called alveoli which facilitate the movement of oxygen…

Effect of studying systems of Fetal pig Purpose The purpose of this pig dissection lab is to organize the body sturcture by observing external anatomy, oral cavity, neck, superficial muscles, thoracic cavity, abdominal cavity, and both male and female reproductive systems. By studying the systems of the pig, it helps understand the systems of the humans because humans and pigs are both mammals which we can assume that systems of pig and human are similar. Results The sex of pig was able to…