Unit 5 Case Study 1: Hassan’s Story A. Which clue would tell Stefan which scapular surface was anterior and which was posterior? What is the name of the shallow, oval socket of the scapula that Stefan placed next to the humerus? The clue for the anterior surface of the scapula is called the coracoid process, where the tendons of muscles and ligaments attach. The clue for the posterior is a prominent ridge called the spine, which runs diagonally across the posterior surface of the scapula.
Which ossification method would form a femur? The femur, which is a long bone, is formed by endochondral ossification which is the replacement of cartilage by osseous tissue. most of the long bone body are formed by this process. 6. Why is bone remodeling necessary when a person reaches adulthood?
| 1.1. Quadratus labii superior: Is a broad sheet, the origin of which extends from the side of the nose to the zygomatic bone. Its medial fibers form the angular head, which arises by a pointed extremity from the upper part of the frontal process of the maxilla and passing obliquely downward and lateralward divides into two slips. One of these is inserted into the greater alar cartilage and skin of the nose; the other is prolonged into the lateral part of the upper lip, blending with the infraorbital head and with the Orbicularis oris. The intermediate portion or infraorbital head arises from the lower margin of the orbit immediately above the infraorbital foramen, some of its fibers being attached to the maxilla, others to the zygomatic bone.
The occipital bone forms the floor and the back of the wall of the skull. The occipital bone articulates with the first vertebra by means of the occipital condyles. The sphenoid bone forms part of the floor of the skull and spans the width of the skull, it looks somewhat butterfly-like in shape. The ethmoid bone lies anterior to the sphenoid bone. The bones of the skull are considered flat bones.
A)long B)irregular C)short D)flat Feedback: Correct! 3 CORRECT A bone that is cuboidal in shape is a ________________ bone. A)long B)short C)flat D)irregular Feedback: Correct! 7.2 Histology of Osseous Tissue 4 CORRECT Which of the following is a mature bone cell that appears to be responsible for the overall supervision of bone maintenance? A)osteogenic cells B)osteoblasts C)osteocytes D)endosteum cells E)osteoclasts Feedback: Correct!
There are two parts to this ligament; superior and inferior. Superior acromioclavicular ligament this ligament is a quadrilateral band, covering the superior part of the articulation, and extending between the upper part of the lateral end of the clavicle and the adjoining part of the upper surface of the acromion. Inferior Acromioclavicular Ligament This ligament is somewhat thinner than the preceding, it covers the under part of the articulation, and is attached to the adjoining surfaces of the two bones. The coracoacromial ligament runs from the coracoid process and the acromion. The coracoacromial ligament is a strong triangular band, extending between the coracoid process and the acromion.
THE FACEBOW PURPOSE: The function of the facebow is to record the relationship of the maxillary arch to the horizontal axis of rotation of the mandible (sometimes referred to as the terminal hinge axis). Three points of reference are necessary to order to designate a plane. The points needed in order to utilize a face tow are: 1 &2 -- The two skin points athat describe the exact or abbitary points where the horizontal axis passes through the skin serve to designate two of the points of the plane of orientation of the facebow. When an earpiece facebow is used, the two points where the ear rods of the facebow enter the external auditory meatus of the ear serve as the two points of orientation. 3--the third point of reference is located on the face at a point that will assist the convenient location of the maxillary cast between the upper and lower members of the articulator.
It is unclear as to how long it would have developed or grown. Which begs the question, did humans ever have a protruding tail? To understand that theory we have to understand the coccyx. The coccyx is also known as “the human tailbone.” It is a small, triangular bone located at the lower end of the vertebral column. The coccyx it attached at the end of the sacrum through a vestigial disc and is also connected to the sacrum with ligaments.
Unlike the rectum above it, the canal is liberally supplied by somatic sensory nerves, so that a poorly directed finger or instrument will produce pain. The rectum begins at the termination of the sigmoid colon about 12 cm from the anal verge .Two muscle bundles, known as the internal and external anal sphincters, participate in defecation. The internal anal sphincter is an enlargement of the circular smooth muscle of the colon and functions involuntarily. The external anal sphincter consists of striated muscle bands under the voluntary control of the puborectalis muscle. The rectum has the same innervation as the bladder; the hypogastric nerves innervate the internal anal sphincter, and the internal pudendal nerve (S3–S4) operates the external anal sphincter.
Once access to the right median cubital vein has been gained, a bolus injection of the contrast media, Uroselectan (42%), is administered. The amount injected will be dependent on the weight of the patient. As previously mentioned, the right median cubital vein connects the right cephalic vein to the right basilic vein. So once the contrast has been introduced, it will move from the site of injection (the right median cubital vein) into the right basilic vein of the arm, which is found to the medial aspect of the femur. At the level of the axilla, it will enter the right axillary vein, which is the resultant vein of the right basilic vein and the right brachial vein uniting.