CHAPTER 3: THE MUSCULAR SYSTEM Three Types of Muscle * Muscle tissue is a collection of cells that shorten during contraction which create tension that results in movement * Tendons are touch bands of connective tissue that join muscle with bones Skeletal muscles * Muscles that are attached to bone (by tendons and other tissue) * Comprise 30 to 40% of human body weight * Humans have conscious control (conscious muscle) over these muscles (the brain can tell them what to do)
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Muscle Description Muscles of the Head: Facial Expression Origin Insertion Action bipartite muscle‚ Epicranius:includes frontalis connected by galea & occipitalis aponeurotica covers forehead‚ no bony attachments galea aponeurotica skin of eyebrows and root of raises eyebrows (as in surprise); nose wrinkles forehead skin horizontally Occipitalis back of head occipital and temporal bones galea aponeurotica pulls scalp posteriorly Corrugator supercilii
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enamel extensions in the incisal Ridge of newly erupted central and lateral incisors are called Marmelons the smallest teeth in the permanent dentition are the mandibular incisors The canines are the longest teeth in the permanent dentition Central fossa is a pinpoint depression in the occlusal surface of a posterior to where tooth where two or more groves meet The maxillary first premolars has to bifurcated roots. There are 12 molars in the permanent Dentition. Permanent maxillary molars have
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Chapter 16 Notes The heart lies in the mediastinum and is surrounded by a doubled layered membrane called the pericardium. The outer most layer of the pericardium is called the fibrous pericardium‚ which anchors the heart to surrounding structures. The inner layer is called the serous pericardium and is composed of two layers. The outer portion is called the parietal pericardium‚ the inner portion is called the visceral pericardium (epicardium). Epicardium- outer most layer of the heart wall
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Thomas Aquinas died on March 7‚ 1274 at the Cistercian abbey of Fossa Nuova near Terracina‚ Italy (Hoagland). It is believed A comet that for three years had shone over the monastery disappeared the day Saint Thomas Aquinas died. About seven months after the death of St. Thomas‚ the abbot of Fossa Nuova wished to change the place of his burial‚ and had his tomb secretly opened. It is claimed a sweet odor of roses escaped and filled
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What is the Urinary System? The urinary is system is a system of production‚ storage‚ and the elimination of urine. Formation and elimination of the urine is important for the human body because it contains nitrogenous wastes of the body that must be eliminated to maintain homeostasis. The urinary system is important for keeping the internal environment of the body clean. This particular system maintains proper homeostasis of water‚ salts and nitrogenous wastes (Iqba‚ 2010). There are four major
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armlike projection† f. foramen __________________ condyle 7. rounded‚ articular projection† g. fossa __________________ fissure 8. narrow opening‡ h. head meatus 9. canal-like structure i. meatus __________________ __________________ foramen 10. round or oval opening through a bone‡ j. process __________________ fossa 11. shallow depression k. ramus __________________ sinus 12. air-filled cavity l. sinus
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source of food is fruit from Tamarind trees. Ring Tailed Lemurs predators are hawks and snakes. Lemurs aren’t safe on the ground or in the trees because these hawks and snakes are threats from almost anywhere. The largest threats the lemurs face are fossa. These animals are at the top of the food chain in Madagascar and are equipped with sharp claws and teeth. Lemurs are able to stay safe by traveling in troops so they are always looking out for predators. The Ring Tailed Lemur is endangered because
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repeating “cognoverant (line 13) and “cognosci” (line 17)‚ which means to learn. He states that the Gauls were learning from the “captivos” (line 13)‚ the Roman captives. The Roman captives had to teach the Gauls how to build the “vallo” and the “fossā” (line 11.) Caesar emphasizes the idea that the Roman captives had to teach the Gauls how to build the rampart and the trench to portray how ignorant and savage they are. He does this to contrast the Romans with the Gauls‚ illustrating how the Romans
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Hassan’s story The types of surface markings Baru would be looking for would be depression and openings. These consist of foramen‚ fossa‚ meatus‚ fissure‚ sulcus‚ process‚ condyle‚ head‚ crest‚ epicondyle‚ line‚ spineous process‚ tubercle‚ trochanter‚ and tuberosity. They were surprised when they found the metopic suture on an adult’s skull because this suture should have went away during childhood. This suture is present during adolescence when the frontal bone is two separate bones. The structures
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